DxCodebookFY2027 · Oct 1, 2026 – Sep 30, 2027

Category · FY2027

S31 Open wound of abdomen, lower back, pelvis and external genitals

  • Header · not billable
  • Codes take a 7th character

S31 is not billable. The category heads 558 billable codes in FY2027, grouped under 8 subdivisions. Its codes take a 7th character, so none is complete with fewer than 7 characters.

Index → code

Where it sits

  1. Chapter 19 Injury, poisoning and certain other consequences of external causes (S00-T88)
  2. S30-S39 Injuries to the abdomen, lower back, lumbar spine, pelvis and external genitals (S30-S39)
  3. S31 Open wound of abdomen, lower back, pelvis and external genitals
Billable codes
558
Subdivisions
8
CC / MCC codes
0 / 66
HCC V28 codes
0
New FY2027
0
Index entries
270

Codes in S31

  1. S31.0
    Open wound of lower back and pelvis
    Header
  2. S31.00
    Unspecified open wound of lower back and pelvis
    Header
  3. S31.000
    Unspecified open wound of lower back and pelvis without penetration into retroperitoneum +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
    Inclusion terms 1

    Inclusion terms

    • Unspecified open wound of lower back and pelvis NOS
  4. S31.001
    Unspecified open wound of lower back and pelvis with penetration into retroperitoneum +7th: A D S
    Needs 7th characterMCC AExempt: 2 of 3 7th characters
  5. S31.01
    Laceration without foreign body of lower back and pelvis
    Header
  6. S31.010
    Laceration without foreign body of lower back and pelvis without penetration into retroperitoneum +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
    Inclusion terms 1

    Inclusion terms

    • Laceration without foreign body of lower back and pelvis NOS
  7. S31.011
    Laceration without foreign body of lower back and pelvis with penetration into retroperitoneum +7th: A D S
    Needs 7th characterMCC AExempt: 2 of 3 7th characters
  8. S31.02
    Laceration with foreign body of lower back and pelvis
    Header
  9. S31.020
    Laceration with foreign body of lower back and pelvis without penetration into retroperitoneum +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
    Inclusion terms 1

    Inclusion terms

    • Laceration with foreign body of lower back and pelvis NOS
  10. S31.021
    Laceration with foreign body of lower back and pelvis with penetration into retroperitoneum +7th: A D S
    Needs 7th characterMCC AExempt: 2 of 3 7th characters
  11. S31.03
    Puncture wound without foreign body of lower back and pelvis
    Header
  12. S31.030
    Puncture wound without foreign body of lower back and pelvis without penetration into retroperitoneum +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
    Inclusion terms 1

    Inclusion terms

    • Puncture wound without foreign body of lower back and pelvis NOS
  13. S31.031
    Puncture wound without foreign body of lower back and pelvis with penetration into retroperitoneum +7th: A D S
    Needs 7th characterMCC AExempt: 2 of 3 7th characters
  14. S31.04
    Puncture wound with foreign body of lower back and pelvis
    Header
  15. S31.040
    Puncture wound with foreign body of lower back and pelvis without penetration into retroperitoneum +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
    Inclusion terms 1

    Inclusion terms

    • Puncture wound with foreign body of lower back and pelvis NOS
  16. S31.041
    Puncture wound with foreign body of lower back and pelvis with penetration into retroperitoneum +7th: A D S
    Needs 7th characterMCC AExempt: 2 of 3 7th characters
  17. S31.05
    Open bite of lower back and pelvis
    Header
    Inclusion terms 1, Excludes1 1

    Inclusion terms

    • Bite of lower back and pelvis NOS

    Excludes1

    • superficial bite of lower back and pelvis (S30.860, S30.870) S30.860 S30.870
  18. S31.050
    Open bite of lower back and pelvis without penetration into retroperitoneum +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
    Inclusion terms 1

    Inclusion terms

    • Open bite of lower back and pelvis NOS
  19. S31.051
    Open bite of lower back and pelvis with penetration into retroperitoneum +7th: A D S
    Needs 7th characterMCC AExempt: 2 of 3 7th characters
  20. S31.1
    Open wound of abdominal wall without penetration into peritoneal cavity
    Header
    Inclusion terms 1, Excludes2 1

    Inclusion terms

    • Open wound of abdominal wall NOS

    Excludes2

    • open wound of abdominal wall with penetration into peritoneal cavity (S31.6-) S31.6
  21. S31.10
    Unspecified open wound of abdominal wall without penetration into peritoneal cavity
    Header
  22. S31.100
    Unspecified open wound of abdominal wall, right upper quadrant without penetration into peritoneal cavity +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  23. S31.101
    Unspecified open wound of abdominal wall, left upper quadrant without penetration into peritoneal cavity +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  24. S31.102
    Unspecified open wound of abdominal wall, epigastric region without penetration into peritoneal cavity +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  25. S31.103
    Unspecified open wound of abdominal wall, right lower quadrant without penetration into peritoneal cavity +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  26. S31.104
    Unspecified open wound of abdominal wall, left lower quadrant without penetration into peritoneal cavity +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  27. S31.105
    Unspecified open wound of abdominal wall, periumbilic region without penetration into peritoneal cavity +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  28. S31.106
    Unspecified open wound of abdominal wall, right flank without penetration into peritoneal cavity +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  29. S31.107
    Unspecified open wound of abdominal wall, left flank without penetration into peritoneal cavity +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  30. S31.109
    Unspecified open wound of abdominal wall, unspecified quadrant without penetration into peritoneal cavity +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
    Inclusion terms 1

    Inclusion terms

    • Unspecified open wound of abdominal wall NOS
  31. S31.10A
    Unspecified open wound of abdominal wall, unspecified flank without penetration into peritoneal cavity +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
    Inclusion terms 1

    Inclusion terms

    • Open wound of abdominal wall of flank NOS without penetration into peritoneal cavity
  32. S31.11
    Laceration without foreign body of abdominal wall without penetration into peritoneal cavity
    Header
  33. S31.110
    Laceration without foreign body of abdominal wall, right upper quadrant without penetration into peritoneal cavity +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  34. S31.111
    Laceration without foreign body of abdominal wall, left upper quadrant without penetration into peritoneal cavity +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  35. S31.112
    Laceration without foreign body of abdominal wall, epigastric region without penetration into peritoneal cavity +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  36. S31.113
    Laceration without foreign body of abdominal wall, right lower quadrant without penetration into peritoneal cavity +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  37. S31.114
    Laceration without foreign body of abdominal wall, left lower quadrant without penetration into peritoneal cavity +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  38. S31.115
    Laceration without foreign body of abdominal wall, periumbilic region without penetration into peritoneal cavity +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  39. S31.116
    Laceration without foreign body of abdominal wall, right flank without penetration into peritoneal cavity +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  40. S31.117
    Laceration without foreign body of abdominal wall, left flank without penetration into peritoneal cavity +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  41. S31.119
    Laceration without foreign body of abdominal wall, unspecified quadrant without penetration into peritoneal cavity +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  42. S31.11A
    Laceration without foreign body of abdominal wall, unspecified flank without penetration into peritoneal cavity +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
    Inclusion terms 1

    Inclusion terms

    • Laceration without foreign body of flank NOS without penetration into peritoneal cavity
  43. S31.12
    Laceration with foreign body of abdominal wall without penetration into peritoneal cavity
    Header
  44. S31.120
    Laceration of abdominal wall with foreign body, right upper quadrant without penetration into peritoneal cavity +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  45. S31.121
    Laceration of abdominal wall with foreign body, left upper quadrant without penetration into peritoneal cavity +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  46. S31.122
    Laceration of abdominal wall with foreign body, epigastric region without penetration into peritoneal cavity +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  47. S31.123
    Laceration of abdominal wall with foreign body, right lower quadrant without penetration into peritoneal cavity +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  48. S31.124
    Laceration of abdominal wall with foreign body, left lower quadrant without penetration into peritoneal cavity +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  49. S31.125
    Laceration of abdominal wall with foreign body, periumbilic region without penetration into peritoneal cavity +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  50. S31.126
    Laceration with foreign body of abdominal wall, right flank without penetration into peritoneal cavity +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  51. S31.127
    Laceration with foreign body of abdominal wall, left flank without penetration into peritoneal cavity +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  52. S31.129
    Laceration of abdominal wall with foreign body, unspecified quadrant without penetration into peritoneal cavity +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  53. S31.12A
    Laceration with foreign body of abdominal wall unspecified flank without penetration into peritoneal cavity +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
    Inclusion terms 1

    Inclusion terms

    • Laceration with foreign body of abdominal wall of flank NOS without penetration into peritoneal cavity
  54. S31.13
    Puncture wound of abdominal wall without foreign body without penetration into peritoneal cavity
    Header
  55. S31.130
    Puncture wound of abdominal wall without foreign body, right upper quadrant without penetration into peritoneal cavity +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  56. S31.131
    Puncture wound of abdominal wall without foreign body, left upper quadrant without penetration into peritoneal cavity +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  57. S31.132
    Puncture wound of abdominal wall without foreign body, epigastric region without penetration into peritoneal cavity +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  58. S31.133
    Puncture wound of abdominal wall without foreign body, right lower quadrant without penetration into peritoneal cavity +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  59. S31.134
    Puncture wound of abdominal wall without foreign body, left lower quadrant without penetration into peritoneal cavity +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  60. S31.135
    Puncture wound of abdominal wall without foreign body, periumbilic region without penetration into peritoneal cavity +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  61. S31.136
    Puncture wound of abdominal wall without foreign body, right flank without penetration into peritoneal cavity +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  62. S31.137
    Puncture wound of abdominal wall without foreign body, left flank without penetration into peritoneal cavity +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  63. S31.139
    Puncture wound of abdominal wall without foreign body, unspecified quadrant without penetration into peritoneal cavity +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  64. S31.13A
    Puncture wound of abdominal wall without foreign body, unspecified flank without penetration into peritoneal cavity +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
    Inclusion terms 1

    Inclusion terms

    • Puncture wound of abdominal wall of flank NOS without foreign body
  65. S31.14
    Puncture wound of abdominal wall with foreign body without penetration into peritoneal cavity
    Header
  66. S31.140
    Puncture wound of abdominal wall with foreign body, right upper quadrant without penetration into peritoneal cavity +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  67. S31.141
    Puncture wound of abdominal wall with foreign body, left upper quadrant without penetration into peritoneal cavity +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  68. S31.142
    Puncture wound of abdominal wall with foreign body, epigastric region without penetration into peritoneal cavity +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  69. S31.143
    Puncture wound of abdominal wall with foreign body, right lower quadrant without penetration into peritoneal cavity +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  70. S31.144
    Puncture wound of abdominal wall with foreign body, left lower quadrant without penetration into peritoneal cavity +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  71. S31.145
    Puncture wound of abdominal wall with foreign body, periumbilic region without penetration into peritoneal cavity +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  72. S31.146
    Puncture wound of abdominal wall with foreign body, right flank without penetration into peritoneal cavity +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  73. S31.147
    Puncture wound of abdominal wall with foreign body, left flank without penetration into peritoneal cavity +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  74. S31.149
    Puncture wound of abdominal wall with foreign body, unspecified quadrant without penetration into peritoneal cavity +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  75. S31.14A
    Puncture wound of abdominal wall with foreign body, unspecified flank without penetration into peritoneal cavity +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
    Inclusion terms 1

    Inclusion terms

    • Puncture wound of abdominal wall with foreign body of flank NOS without penetration into peritoneal cavity
  76. S31.15
    Open bite of abdominal wall without penetration into peritoneal cavity
    Header
    Inclusion terms 1, Excludes1 1

    Inclusion terms

    • Bite of abdominal wall NOS

    Excludes1

    • superficial bite of abdominal wall (S30.871) S30.871
  77. S31.150
    Open bite of abdominal wall, right upper quadrant without penetration into peritoneal cavity +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  78. S31.151
    Open bite of abdominal wall, left upper quadrant without penetration into peritoneal cavity +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  79. S31.152
    Open bite of abdominal wall, epigastric region without penetration into peritoneal cavity +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  80. S31.153
    Open bite of abdominal wall, right lower quadrant without penetration into peritoneal cavity +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  81. S31.154
    Open bite of abdominal wall, left lower quadrant without penetration into peritoneal cavity +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  82. S31.155
    Open bite of abdominal wall, periumbilic region without penetration into peritoneal cavity +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  83. S31.156
    Open bite of abdominal wall, right flank without penetration into peritoneal cavity +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  84. S31.157
    Open bite of abdominal wall, left flank without penetration into peritoneal cavity +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  85. S31.159
    Open bite of abdominal wall, unspecified quadrant without penetration into peritoneal cavity +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  86. S31.15A
    Open bite of abdominal wall, unspecified flank without penetration into peritoneal cavity +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
    Inclusion terms 1

    Inclusion terms

    • Open bite of abdominal wall of flank NOS without penetration into peritoneal cavity
  87. S31.2
    Open wound of penis
    Header
  88. S31.20
    Unspecified open wound of penis +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  89. S31.21
    Laceration without foreign body of penis +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  90. S31.22
    Laceration with foreign body of penis +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  91. S31.23
    Puncture wound without foreign body of penis +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  92. S31.24
    Puncture wound with foreign body of penis +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  93. S31.25
    Open bite of penis +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
    Inclusion terms 1, Excludes1 1

    Inclusion terms

    • Bite of penis NOS

    Excludes1

  94. S31.3
    Open wound of scrotum and testes
    Header
  95. S31.30
    Unspecified open wound of scrotum and testes +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  96. S31.31
    Laceration without foreign body of scrotum and testes +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  97. S31.32
    Laceration with foreign body of scrotum and testes +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  98. S31.33
    Puncture wound without foreign body of scrotum and testes +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  99. S31.34
    Puncture wound with foreign body of scrotum and testes +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  100. S31.35
    Open bite of scrotum and testes +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
    Inclusion terms 1, Excludes1 1

    Inclusion terms

    • Bite of scrotum and testes NOS

    Excludes1

    • superficial bite of scrotum and testes (S30.863, S30.873) S30.863 S30.873
  101. S31.4
    Open wound of vagina and vulva
    Header
    Excludes1 1

    Excludes1

    • injury to vagina and vulva during delivery (O70.-, O71.4) O70 O71.4
  102. S31.40
    Unspecified open wound of vagina and vulva +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  103. S31.41
    Laceration without foreign body of vagina and vulva +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  104. S31.42
    Laceration with foreign body of vagina and vulva +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  105. S31.43
    Puncture wound without foreign body of vagina and vulva +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  106. S31.44
    Puncture wound with foreign body of vagina and vulva +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  107. S31.45
    Open bite of vagina and vulva +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
    Inclusion terms 1, Excludes1 1

    Inclusion terms

    • Bite of vagina and vulva NOS

    Excludes1

    • superficial bite of vagina and vulva (S30.864, S30.874) S30.864 S30.874
  108. S31.5
    Open wound of unspecified external genital organs
    Header
    Excludes1 1

    Excludes1

    • traumatic amputation of external genital organs (S38.21, S38.22) S38.21 S38.22
  109. S31.50
    Unspecified open wound of unspecified external genital organs
    Header
  110. S31.501
    Unspecified open wound of unspecified external genital organs, male +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  111. S31.502
    Unspecified open wound of unspecified external genital organs, female +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  112. S31.51
    Laceration without foreign body of unspecified external genital organs
    Header
  113. S31.511
    Laceration without foreign body of unspecified external genital organs, male +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  114. S31.512
    Laceration without foreign body of unspecified external genital organs, female +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  115. S31.52
    Laceration with foreign body of unspecified external genital organs
    Header
  116. S31.521
    Laceration with foreign body of unspecified external genital organs, male +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  117. S31.522
    Laceration with foreign body of unspecified external genital organs, female +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  118. S31.53
    Puncture wound without foreign body of unspecified external genital organs
    Header
  119. S31.531
    Puncture wound without foreign body of unspecified external genital organs, male +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  120. S31.532
    Puncture wound without foreign body of unspecified external genital organs, female +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  121. S31.54
    Puncture wound with foreign body of unspecified external genital organs
    Header
  122. S31.541
    Puncture wound with foreign body of unspecified external genital organs, male +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  123. S31.542
    Puncture wound with foreign body of unspecified external genital organs, female +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  124. S31.55
    Open bite of unspecified external genital organs
    Header
    Inclusion terms 1, Excludes1 1

    Inclusion terms

    • Bite of unspecified external genital organs NOS

    Excludes1

  125. S31.551
    Open bite of unspecified external genital organs, male +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  126. S31.552
    Open bite of unspecified external genital organs, female +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  127. S31.6
    Open wound of abdominal wall with penetration into peritoneal cavity
    Header
  128. S31.60
    Unspecified open wound of abdominal wall with penetration into peritoneal cavity
    Header
  129. S31.600
    Unspecified open wound of abdominal wall, right upper quadrant with penetration into peritoneal cavity +7th: A D S
    Needs 7th characterMCC AExempt: 2 of 3 7th characters
  130. S31.601
    Unspecified open wound of abdominal wall, left upper quadrant with penetration into peritoneal cavity +7th: A D S
    Needs 7th characterMCC AExempt: 2 of 3 7th characters
  131. S31.602
    Unspecified open wound of abdominal wall, epigastric region with penetration into peritoneal cavity +7th: A D S
    Needs 7th characterMCC AExempt: 2 of 3 7th characters
  132. S31.603
    Unspecified open wound of abdominal wall, right lower quadrant with penetration into peritoneal cavity +7th: A D S
    Needs 7th characterMCC AExempt: 2 of 3 7th characters
  133. S31.604
    Unspecified open wound of abdominal wall, left lower quadrant with penetration into peritoneal cavity +7th: A D S
    Needs 7th characterMCC AExempt: 2 of 3 7th characters
  134. S31.605
    Unspecified open wound of abdominal wall, periumbilic region with penetration into peritoneal cavity +7th: A D S
    Needs 7th characterMCC AExempt: 2 of 3 7th characters
  135. S31.606
    Unspecified open wound of abdominal wall, right flank with penetration into peritoneal cavity +7th: A D S
    Needs 7th characterMCC AExempt: 2 of 3 7th characters
  136. S31.607
    Unspecified open wound of abdominal wall, left flank with penetration into peritoneal cavity +7th: A D S
    Needs 7th characterMCC AExempt: 2 of 3 7th characters
  137. S31.609
    Unspecified open wound of abdominal wall, unspecified quadrant with penetration into peritoneal cavity +7th: A D S
    Needs 7th characterMCC AExempt: 2 of 3 7th characters
  138. S31.60A
    Unspecified open wound of abdominal wall, unspecified flank with penetration into peritoneal cavity +7th: A D S
    Needs 7th characterMCC AExempt: 2 of 3 7th characters
    Inclusion terms 1

    Inclusion terms

    • Unspecified open wound of abdominal wall of flank NOS, with penetration into peritoneal cavity
  139. S31.61
    Laceration without foreign body of abdominal wall with penetration into peritoneal cavity
    Header
  140. S31.610
    Laceration without foreign body of abdominal wall, right upper quadrant with penetration into peritoneal cavity +7th: A D S
    Needs 7th characterMCC AExempt: 2 of 3 7th characters
  141. S31.611
    Laceration without foreign body of abdominal wall, left upper quadrant with penetration into peritoneal cavity +7th: A D S
    Needs 7th characterMCC AExempt: 2 of 3 7th characters
  142. S31.612
    Laceration without foreign body of abdominal wall, epigastric region with penetration into peritoneal cavity +7th: A D S
    Needs 7th characterMCC AExempt: 2 of 3 7th characters
  143. S31.613
    Laceration without foreign body of abdominal wall, right lower quadrant with penetration into peritoneal cavity +7th: A D S
    Needs 7th characterMCC AExempt: 2 of 3 7th characters
  144. S31.614
    Laceration without foreign body of abdominal wall, left lower quadrant with penetration into peritoneal cavity +7th: A D S
    Needs 7th characterMCC AExempt: 2 of 3 7th characters
  145. S31.615
    Laceration without foreign body of abdominal wall, periumbilic region with penetration into peritoneal cavity +7th: A D S
    Needs 7th characterMCC AExempt: 2 of 3 7th characters
  146. S31.616
    Laceration without foreign body of abdominal wall, right flank with penetration into peritoneal cavity +7th: A D S
    Needs 7th characterMCC AExempt: 2 of 3 7th characters
  147. S31.617
    Laceration without foreign body of abdominal wall, left flank with penetration into peritoneal cavity +7th: A D S
    Needs 7th characterMCC AExempt: 2 of 3 7th characters
  148. S31.619
    Laceration without foreign body of abdominal wall, unspecified quadrant with penetration into peritoneal cavity +7th: A D S
    Needs 7th characterMCC AExempt: 2 of 3 7th characters
  149. S31.61A
    Laceration without foreign body of abdominal wall, unspecified flank with penetration into peritoneal cavity +7th: A D S
    Needs 7th characterMCC AExempt: 2 of 3 7th characters
    Inclusion terms 1

    Inclusion terms

    • Laceration without foreign body of abdominal wall of flank NOS, with penetration into peritoneal cavity
  150. S31.62
    Laceration with foreign body of abdominal wall with penetration into peritoneal cavity
    Header
  151. S31.620
    Laceration with foreign body of abdominal wall, right upper quadrant with penetration into peritoneal cavity +7th: A D S
    Needs 7th characterMCC AExempt: 2 of 3 7th characters
  152. S31.621
    Laceration with foreign body of abdominal wall, left upper quadrant with penetration into peritoneal cavity +7th: A D S
    Needs 7th characterMCC AExempt: 2 of 3 7th characters
  153. S31.622
    Laceration with foreign body of abdominal wall, epigastric region with penetration into peritoneal cavity +7th: A D S
    Needs 7th characterMCC AExempt: 2 of 3 7th characters
  154. S31.623
    Laceration with foreign body of abdominal wall, right lower quadrant with penetration into peritoneal cavity +7th: A D S
    Needs 7th characterMCC AExempt: 2 of 3 7th characters
  155. S31.624
    Laceration with foreign body of abdominal wall, left lower quadrant with penetration into peritoneal cavity +7th: A D S
    Needs 7th characterMCC AExempt: 2 of 3 7th characters
  156. S31.625
    Laceration with foreign body of abdominal wall, periumbilic region with penetration into peritoneal cavity +7th: A D S
    Needs 7th characterMCC AExempt: 2 of 3 7th characters
  157. S31.626
    Laceration with foreign body of abdominal wall, right flank with penetration into peritoneal cavity +7th: A D S
    Needs 7th characterMCC AExempt: 2 of 3 7th characters
  158. S31.627
    Laceration with foreign body of abdominal wall, left flank with penetration into peritoneal cavity +7th: A D S
    Needs 7th characterMCC AExempt: 2 of 3 7th characters
  159. S31.629
    Laceration with foreign body of abdominal wall, unspecified quadrant with penetration into peritoneal cavity +7th: A D S
    Needs 7th characterMCC AExempt: 2 of 3 7th characters
  160. S31.62A
    Laceration with foreign body of abdominal wall, unspecified flank with penetration into peritoneal cavity +7th: A D S
    Needs 7th characterMCC AExempt: 2 of 3 7th characters
    Inclusion terms 1

    Inclusion terms

    • Laceration with foreign body of abdominal wall, flank NOS, with penetration into peritoneal cavity
  161. S31.63
    Puncture wound without foreign body of abdominal wall with penetration into peritoneal cavity
    Header
  162. S31.630
    Puncture wound without foreign body of abdominal wall, right upper quadrant with penetration into peritoneal cavity +7th: A D S
    Needs 7th characterMCC AExempt: 2 of 3 7th characters
  163. S31.631
    Puncture wound without foreign body of abdominal wall, left upper quadrant with penetration into peritoneal cavity +7th: A D S
    Needs 7th characterMCC AExempt: 2 of 3 7th characters
  164. S31.632
    Puncture wound without foreign body of abdominal wall, epigastric region with penetration into peritoneal cavity +7th: A D S
    Needs 7th characterMCC AExempt: 2 of 3 7th characters
  165. S31.633
    Puncture wound without foreign body of abdominal wall, right lower quadrant with penetration into peritoneal cavity +7th: A D S
    Needs 7th characterMCC AExempt: 2 of 3 7th characters
  166. S31.634
    Puncture wound without foreign body of abdominal wall, left lower quadrant with penetration into peritoneal cavity +7th: A D S
    Needs 7th characterMCC AExempt: 2 of 3 7th characters
  167. S31.635
    Puncture wound without foreign body of abdominal wall, periumbilic region with penetration into peritoneal cavity +7th: A D S
    Needs 7th characterMCC AExempt: 2 of 3 7th characters
  168. S31.636
    Puncture wound of abdominal wall without foreign body, right flank with penetration into peritoneal cavity +7th: A D S
    Needs 7th characterMCC AExempt: 2 of 3 7th characters
  169. S31.637
    Puncture wound of abdominal wall without foreign body, left flank with penetration into peritoneal cavity +7th: A D S
    Needs 7th characterMCC AExempt: 2 of 3 7th characters
  170. S31.639
    Puncture wound without foreign body of abdominal wall, unspecified quadrant with penetration into peritoneal cavity +7th: A D S
    Needs 7th characterMCC AExempt: 2 of 3 7th characters
  171. S31.63A
    Puncture wound of abdominal wall without foreign body, unspecified flank with penetration into peritoneal cavity +7th: A D S
    Needs 7th characterMCC AExempt: 2 of 3 7th characters
    Inclusion terms 1

    Inclusion terms

    • Puncture wound of abdominal wall without foreign body, flank NOS, with penetration into peritoneal cavity
  172. S31.64
    Puncture wound with foreign body of abdominal wall with penetration into peritoneal cavity
    Header
  173. S31.640
    Puncture wound with foreign body of abdominal wall, right upper quadrant with penetration into peritoneal cavity +7th: A D S
    Needs 7th characterMCC AExempt: 2 of 3 7th characters
  174. S31.641
    Puncture wound with foreign body of abdominal wall, left upper quadrant with penetration into peritoneal cavity +7th: A D S
    Needs 7th characterMCC AExempt: 2 of 3 7th characters
  175. S31.642
    Puncture wound with foreign body of abdominal wall, epigastric region with penetration into peritoneal cavity +7th: A D S
    Needs 7th characterMCC AExempt: 2 of 3 7th characters
  176. S31.643
    Puncture wound with foreign body of abdominal wall, right lower quadrant with penetration into peritoneal cavity +7th: A D S
    Needs 7th characterMCC AExempt: 2 of 3 7th characters
  177. S31.644
    Puncture wound with foreign body of abdominal wall, left lower quadrant with penetration into peritoneal cavity +7th: A D S
    Needs 7th characterMCC AExempt: 2 of 3 7th characters
  178. S31.645
    Puncture wound with foreign body of abdominal wall, periumbilic region with penetration into peritoneal cavity +7th: A D S
    Needs 7th characterMCC AExempt: 2 of 3 7th characters
  179. S31.646
    Puncture wound of abdominal wall with foreign body, right flank with penetration into peritoneal cavity +7th: A D S
    Needs 7th characterMCC AExempt: 2 of 3 7th characters
  180. S31.647
    Puncture wound of abdominal wall with foreign body, left flank with penetration into peritoneal cavity +7th: A D S
    Needs 7th characterMCC AExempt: 2 of 3 7th characters
  181. S31.649
    Puncture wound with foreign body of abdominal wall, unspecified quadrant with penetration into peritoneal cavity +7th: A D S
    Needs 7th characterMCC AExempt: 2 of 3 7th characters
  182. S31.64A
    Puncture wound of abdominal wall with foreign body, unspecified flank with penetration into peritoneal cavity +7th: A D S
    Needs 7th characterMCC AExempt: 2 of 3 7th characters
    Inclusion terms 1

    Inclusion terms

    • Puncture wound of abdominal wall with foreign body, flank NOS, with penetration into peritoneal cavity
  183. S31.65
    Open bite of abdominal wall with penetration into peritoneal cavity
    Header
    Excludes1 1

    Excludes1

  184. S31.650
    Open bite of abdominal wall, right upper quadrant with penetration into peritoneal cavity +7th: A D S
    Needs 7th characterMCC AExempt: 2 of 3 7th characters
  185. S31.651
    Open bite of abdominal wall, left upper quadrant with penetration into peritoneal cavity +7th: A D S
    Needs 7th characterMCC AExempt: 2 of 3 7th characters
  186. S31.652
    Open bite of abdominal wall, epigastric region with penetration into peritoneal cavity +7th: A D S
    Needs 7th characterMCC AExempt: 2 of 3 7th characters
  187. S31.653
    Open bite of abdominal wall, right lower quadrant with penetration into peritoneal cavity +7th: A D S
    Needs 7th characterMCC AExempt: 2 of 3 7th characters
  188. S31.654
    Open bite of abdominal wall, left lower quadrant with penetration into peritoneal cavity +7th: A D S
    Needs 7th characterMCC AExempt: 2 of 3 7th characters
  189. S31.655
    Open bite of abdominal wall, periumbilic region with penetration into peritoneal cavity +7th: A D S
    Needs 7th characterMCC AExempt: 2 of 3 7th characters
  190. S31.656
    Open bite of abdominal wall, right flank with penetration into peritoneal cavity +7th: A D S
    Needs 7th characterMCC AExempt: 2 of 3 7th characters
  191. S31.657
    Open bite of abdominal wall, left flank with penetration into peritoneal cavity +7th: A D S
    Needs 7th characterMCC AExempt: 2 of 3 7th characters
  192. S31.659
    Open bite of abdominal wall, unspecified quadrant with penetration into peritoneal cavity +7th: A D S
    Needs 7th characterMCC AExempt: 2 of 3 7th characters
  193. S31.65A
    Open bite of abdominal wall, unspecified flank with penetration into peritoneal cavity +7th: A D S
    Needs 7th characterMCC AExempt: 2 of 3 7th characters
    Inclusion terms 1

    Inclusion terms

    • Open bite of abdominal wall, flank NOS, with penetration into peritoneal cavity
  194. S31.8
    Open wound of other parts of abdomen, lower back and pelvis
    Header
  195. S31.80
    Open wound of unspecified buttock
    Header
  196. S31.801
    Laceration without foreign body of unspecified buttock +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  197. S31.802
    Laceration with foreign body of unspecified buttock +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  198. S31.803
    Puncture wound without foreign body of unspecified buttock +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  199. S31.804
    Puncture wound with foreign body of unspecified buttock +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  200. S31.805
    Open bite of unspecified buttock +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
    Inclusion terms 1, Excludes1 1

    Inclusion terms

    • Bite of buttock NOS

    Excludes1

    • superficial bite of buttock (S30.870) S30.870
  201. S31.809
    Unspecified open wound of unspecified buttock +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  202. S31.81
    Open wound of right buttock
    Header
  203. S31.811
    Laceration without foreign body of right buttock +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  204. S31.812
    Laceration with foreign body of right buttock +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  205. S31.813
    Puncture wound without foreign body of right buttock +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  206. S31.814
    Puncture wound with foreign body of right buttock +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  207. S31.815
    Open bite of right buttock +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
    Inclusion terms 1, Excludes1 1

    Inclusion terms

    • Bite of right buttock NOS

    Excludes1

    • superficial bite of buttock (S30.870) S30.870
  208. S31.819
    Unspecified open wound of right buttock +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  209. S31.82
    Open wound of left buttock
    Header
  210. S31.821
    Laceration without foreign body of left buttock +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  211. S31.822
    Laceration with foreign body of left buttock +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  212. S31.823
    Puncture wound without foreign body of left buttock +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  213. S31.824
    Puncture wound with foreign body of left buttock +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  214. S31.825
    Open bite of left buttock +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
    Inclusion terms 1, Excludes1 1

    Inclusion terms

    • Bite of left buttock NOS

    Excludes1

    • superficial bite of buttock (S30.870) S30.870
  215. S31.829
    Unspecified open wound of left buttock +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  216. S31.83
    Open wound of anus
    Header
  217. S31.831
    Laceration without foreign body of anus +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  218. S31.832
    Laceration with foreign body of anus +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  219. S31.833
    Puncture wound without foreign body of anus +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  220. S31.834
    Puncture wound with foreign body of anus +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  221. S31.835
    Open bite of anus +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
    Inclusion terms 1, Excludes1 1

    Inclusion terms

    • Bite of anus NOS

    Excludes1

    • superficial bite of anus (S30.877) S30.877
  222. S31.839
    Unspecified open wound of anus +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters

CC/MCC: as a secondary diagnosis, unless the principal diagnosis is on the code’s PDX exclusion list (MS-DRG v44 Appendix C; list on the code card).

Sources of each column. Rows marked +7th need a 7th character: pick one to build the full code; its code card has its own flags.

Instructions

At S31

Excludes1

  • traumatic amputation of part of abdomen, lower back and pelvis (S38.2-, S38.3) S38.2 S38.3

Excludes2

  • open wound of hip (S71.00-S71.02) S71.00 S71.02
  • open fracture of pelvis (S32.1--S32.9 with 7th character B) S32.1 S32.9

Code also

  • any associated:
  • spinal cord injury (S24.0, S24.1-, S34.0-, S34.1-) S24.0 S24.1 S34.0 S34.1
  • wound infection

Notes that also apply

Block S30-S39 instructions (Includes 6, Excludes2 6): printed on the block page.

Chapter 19 instructions (Notes 2, Excludes2 2, Use additional code 1): printed on the chapter 19 page.

7th characters

7th characters for S31 defined here

The appropriate 7th character is to be added to each code from category S31

7th characters for S31
7thMeaning (NCHS)
Ainitial encounter
Dsubsequent encounter
Ssequela

A code that takes a 7th character is invalid without it; the placeholder X fills a code shorter than 6 characters (Official Guidelines I.A.5). How 7th characters work.

Index entries

  • Lacerationpelvic → S31.010
  • Bite(s) (animal) (human)pelvis → S31.050
  • Wound, openepigastric region → S31.102
  • Wound, openperiumbilic region → S31.105
  • Wound, openhypochondrium → S31.109
  • Wound, openhypogastric region → S31.109
  • Wound, openinguinal region → S31.109
  • Wound, openloin → S31.109
  • Wound, openflank → S31.10A
  • Lacerationumbilical region → S31.115
  • Lacerationpubic region → S31.119
  • Lacerationflank → S31.11A
  • Punctureumbilical region → S31.135
  • Puncturepubic region → S31.139
  • Punctureflank → S31.13A
  • Bite(s) (animal) (human)umbilical region → S31.155
  • Bite(s) (animal) (human)flank → S31.15A
  • Wound, openpenis → S31.20
  • Lacerationpenis → S31.21
  • Puncturepenis → S31.23
  • Bite(s) (animal) (human)penis → S31.25
  • Wound, openscrotum → S31.30
  • Wound, opentestis → S31.30
  • Lacerationscrotum → S31.31
  • Lacerationtestis → S31.31
  • Puncturescrotum → S31.33
  • Puncturetestis → S31.33
  • Bite(s) (animal) (human)scrotum → S31.35
  • Bite(s) (animal) (human)testis → S31.35
  • Wound, openclitoris → S31.40
  • Wound, openhymen → S31.40
  • Wound, openvagina → S31.40
  • Wound, openvulva → S31.40
  • Lacerationvagina → S31.41
  • Lacerationvulva → S31.41
  • Puncturevagina → S31.43
  • Puncturevulva → S31.43
  • Bite(s) (animal) (human)hymen → S31.45
  • Bite(s) (animal) (human)vulva → S31.45
  • Lacerationbuttock → S31.801

230 more, longer entries are not listed; the search box finds them by word.

NCHS Alphabetic Index. Index first, then the Tabular List.

Hierarchy