DxCodebookFY2027 · Oct 1, 2026 – Sep 30, 2027

Category · FY2027

S56 Injury of muscle, fascia and tendon at forearm level

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

S56 is not billable. The category heads 432 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

  • Injurymuscle (and fascia) (and tendon)forearm (level) → S56.90-
  • Injurymuscle (and fascia) (and tendon)forearm (level)flexor → S56.20-
  • Injurymuscle (and fascia) (and tendon)forearm (level)strain → S56.91-

Where it sits

  1. Chapter 19 Injury, poisoning and certain other consequences of external causes (S00-T88)
  2. S50-S59 Injuries to the elbow and forearm (S50-S59)
  3. S56 Injury of muscle, fascia and tendon at forearm level
Billable codes
432
Subdivisions
8
CC / MCC codes
36 / 0
HCC V28 codes
0
New FY2027
0
Index entries
57

Codes in S56

  1. S56.0
    Injury of flexor muscle, fascia and tendon of thumb at forearm level
    Header
  2. S56.00
    Unspecified injury of flexor muscle, fascia and tendon of thumb at forearm level
    Header
  3. S56.001
    Unspecified injury of flexor muscle, fascia and tendon of right thumb at forearm level +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  4. S56.002
    Unspecified injury of flexor muscle, fascia and tendon of left thumb at forearm level +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  5. S56.009
    Unspecified injury of flexor muscle, fascia and tendon of unspecified thumb at forearm level +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  6. S56.01
    Strain of flexor muscle, fascia and tendon of thumb at forearm level
    Header
  7. S56.011
    Strain of flexor muscle, fascia and tendon of right thumb at forearm level +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  8. S56.012
    Strain of flexor muscle, fascia and tendon of left thumb at forearm level +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  9. S56.019
    Strain of flexor muscle, fascia and tendon of unspecified thumb at forearm level +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  10. S56.02
    Laceration of flexor muscle, fascia and tendon of thumb at forearm level
    Header
  11. S56.021
    Laceration of flexor muscle, fascia and tendon of right thumb at forearm level +7th: A D S
    Needs 7th characterCC AExempt: 2 of 3 7th characters
  12. S56.022
    Laceration of flexor muscle, fascia and tendon of left thumb at forearm level +7th: A D S
    Needs 7th characterCC AExempt: 2 of 3 7th characters
  13. S56.029
    Laceration of flexor muscle, fascia and tendon of unspecified thumb at forearm level +7th: A D S
    Needs 7th characterCC AExempt: 2 of 3 7th characters
  14. S56.09
    Other injury of flexor muscle, fascia and tendon of thumb at forearm level
    Header
  15. S56.091
    Other injury of flexor muscle, fascia and tendon of right thumb at forearm level +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  16. S56.092
    Other injury of flexor muscle, fascia and tendon of left thumb at forearm level +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  17. S56.099
    Other injury of flexor muscle, fascia and tendon of unspecified thumb at forearm level +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  18. S56.1
    Injury of flexor muscle, fascia and tendon of other and unspecified finger at forearm level
    Header
  19. S56.10
    Unspecified injury of flexor muscle, fascia and tendon of other and unspecified finger at forearm level
    Header
  20. S56.101
    Unspecified injury of flexor muscle, fascia and tendon of right index finger at forearm level +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  21. S56.102
    Unspecified injury of flexor muscle, fascia and tendon of left index finger at forearm level +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  22. S56.103
    Unspecified injury of flexor muscle, fascia and tendon of right middle finger at forearm level +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  23. S56.104
    Unspecified injury of flexor muscle, fascia and tendon of left middle finger at forearm level +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  24. S56.105
    Unspecified injury of flexor muscle, fascia and tendon of right ring finger at forearm level +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  25. S56.106
    Unspecified injury of flexor muscle, fascia and tendon of left ring finger at forearm level +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  26. S56.107
    Unspecified injury of flexor muscle, fascia and tendon of right little finger at forearm level +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  27. S56.108
    Unspecified injury of flexor muscle, fascia and tendon of left little finger at forearm level +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  28. S56.109
    Unspecified injury of flexor muscle, fascia and tendon of unspecified finger at forearm level +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  29. S56.11
    Strain of flexor muscle, fascia and tendon of other and unspecified finger at forearm level
    Header
  30. S56.111
    Strain of flexor muscle, fascia and tendon of right index finger at forearm level +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  31. S56.112
    Strain of flexor muscle, fascia and tendon of left index finger at forearm level +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  32. S56.113
    Strain of flexor muscle, fascia and tendon of right middle finger at forearm level +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  33. S56.114
    Strain of flexor muscle, fascia and tendon of left middle finger at forearm level +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  34. S56.115
    Strain of flexor muscle, fascia and tendon of right ring finger at forearm level +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  35. S56.116
    Strain of flexor muscle, fascia and tendon of left ring finger at forearm level +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  36. S56.117
    Strain of flexor muscle, fascia and tendon of right little finger at forearm level +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  37. S56.118
    Strain of flexor muscle, fascia and tendon of left little finger at forearm level +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  38. S56.119
    Strain of flexor muscle, fascia and tendon of finger of unspecified finger at forearm level +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  39. S56.12
    Laceration of flexor muscle, fascia and tendon of other and unspecified finger at forearm level
    Header
  40. S56.121
    Laceration of flexor muscle, fascia and tendon of right index finger at forearm level +7th: A D S
    Needs 7th characterCC AExempt: 2 of 3 7th characters
  41. S56.122
    Laceration of flexor muscle, fascia and tendon of left index finger at forearm level +7th: A D S
    Needs 7th characterCC AExempt: 2 of 3 7th characters
  42. S56.123
    Laceration of flexor muscle, fascia and tendon of right middle finger at forearm level +7th: A D S
    Needs 7th characterCC AExempt: 2 of 3 7th characters
  43. S56.124
    Laceration of flexor muscle, fascia and tendon of left middle finger at forearm level +7th: A D S
    Needs 7th characterCC AExempt: 2 of 3 7th characters
  44. S56.125
    Laceration of flexor muscle, fascia and tendon of right ring finger at forearm level +7th: A D S
    Needs 7th characterCC AExempt: 2 of 3 7th characters
  45. S56.126
    Laceration of flexor muscle, fascia and tendon of left ring finger at forearm level +7th: A D S
    Needs 7th characterCC AExempt: 2 of 3 7th characters
  46. S56.127
    Laceration of flexor muscle, fascia and tendon of right little finger at forearm level +7th: A D S
    Needs 7th characterCC AExempt: 2 of 3 7th characters
  47. S56.128
    Laceration of flexor muscle, fascia and tendon of left little finger at forearm level +7th: A D S
    Needs 7th characterCC AExempt: 2 of 3 7th characters
  48. S56.129
    Laceration of flexor muscle, fascia and tendon of unspecified finger at forearm level +7th: A D S
    Needs 7th characterCC AExempt: 2 of 3 7th characters
  49. S56.19
    Other injury of flexor muscle, fascia and tendon of other and unspecified finger at forearm level
    Header
  50. S56.191
    Other injury of flexor muscle, fascia and tendon of right index finger at forearm level +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  51. S56.192
    Other injury of flexor muscle, fascia and tendon of left index finger at forearm level +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  52. S56.193
    Other injury of flexor muscle, fascia and tendon of right middle finger at forearm level +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  53. S56.194
    Other injury of flexor muscle, fascia and tendon of left middle finger at forearm level +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  54. S56.195
    Other injury of flexor muscle, fascia and tendon of right ring finger at forearm level +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  55. S56.196
    Other injury of flexor muscle, fascia and tendon of left ring finger at forearm level +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  56. S56.197
    Other injury of flexor muscle, fascia and tendon of right little finger at forearm level +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  57. S56.198
    Other injury of flexor muscle, fascia and tendon of left little finger at forearm level +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  58. S56.199
    Other injury of flexor muscle, fascia and tendon of unspecified finger at forearm level +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  59. S56.2
    Injury of other flexor muscle, fascia and tendon at forearm level
    Header
  60. S56.20
    Unspecified injury of other flexor muscle, fascia and tendon at forearm level
    Header
  61. S56.201
    Unspecified injury of other flexor muscle, fascia and tendon at forearm level, right arm +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  62. S56.202
    Unspecified injury of other flexor muscle, fascia and tendon at forearm level, left arm +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  63. S56.209
    Unspecified injury of other flexor muscle, fascia and tendon at forearm level, unspecified arm +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  64. S56.21
    Strain of other flexor muscle, fascia and tendon at forearm level
    Header
  65. S56.211
    Strain of other flexor muscle, fascia and tendon at forearm level, right arm +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  66. S56.212
    Strain of other flexor muscle, fascia and tendon at forearm level, left arm +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  67. S56.219
    Strain of other flexor muscle, fascia and tendon at forearm level, unspecified arm +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  68. S56.22
    Laceration of other flexor muscle, fascia and tendon at forearm level
    Header
  69. S56.221
    Laceration of other flexor muscle, fascia and tendon at forearm level, right arm +7th: A D S
    Needs 7th characterCC AExempt: 2 of 3 7th characters
  70. S56.222
    Laceration of other flexor muscle, fascia and tendon at forearm level, left arm +7th: A D S
    Needs 7th characterCC AExempt: 2 of 3 7th characters
  71. S56.229
    Laceration of other flexor muscle, fascia and tendon at forearm level, unspecified arm +7th: A D S
    Needs 7th characterCC AExempt: 2 of 3 7th characters
  72. S56.29
    Other injury of other flexor muscle, fascia and tendon at forearm level
    Header
  73. S56.291
    Other injury of other flexor muscle, fascia and tendon at forearm level, right arm +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  74. S56.292
    Other injury of other flexor muscle, fascia and tendon at forearm level, left arm +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  75. S56.299
    Other injury of other flexor muscle, fascia and tendon at forearm level, unspecified arm +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  76. S56.3
    Injury of extensor or abductor muscles, fascia and tendons of thumb at forearm level
    Header
  77. S56.30
    Unspecified injury of extensor or abductor muscles, fascia and tendons of thumb at forearm level
    Header
  78. S56.301
    Unspecified injury of extensor or abductor muscles, fascia and tendons of right thumb at forearm level +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  79. S56.302
    Unspecified injury of extensor or abductor muscles, fascia and tendons of left thumb at forearm level +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  80. S56.309
    Unspecified injury of extensor or abductor muscles, fascia and tendons of unspecified thumb at forearm level +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  81. S56.31
    Strain of extensor or abductor muscles, fascia and tendons of thumb at forearm level
    Header
  82. S56.311
    Strain of extensor or abductor muscles, fascia and tendons of right thumb at forearm level +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  83. S56.312
    Strain of extensor or abductor muscles, fascia and tendons of left thumb at forearm level +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  84. S56.319
    Strain of extensor or abductor muscles, fascia and tendons of unspecified thumb at forearm level +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  85. S56.32
    Laceration of extensor or abductor muscles, fascia and tendons of thumb at forearm level
    Header
  86. S56.321
    Laceration of extensor or abductor muscles, fascia and tendons of right thumb at forearm level +7th: A D S
    Needs 7th characterCC AExempt: 2 of 3 7th characters
  87. S56.322
    Laceration of extensor or abductor muscles, fascia and tendons of left thumb at forearm level +7th: A D S
    Needs 7th characterCC AExempt: 2 of 3 7th characters
  88. S56.329
    Laceration of extensor or abductor muscles, fascia and tendons of unspecified thumb at forearm level +7th: A D S
    Needs 7th characterCC AExempt: 2 of 3 7th characters
  89. S56.39
    Other injury of extensor or abductor muscles, fascia and tendons of thumb at forearm level
    Header
  90. S56.391
    Other injury of extensor or abductor muscles, fascia and tendons of right thumb at forearm level +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  91. S56.392
    Other injury of extensor or abductor muscles, fascia and tendons of left thumb at forearm level +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  92. S56.399
    Other injury of extensor or abductor muscles, fascia and tendons of unspecified thumb at forearm level +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  93. S56.4
    Injury of extensor muscle, fascia and tendon of other and unspecified finger at forearm level
    Header
  94. S56.40
    Unspecified injury of extensor muscle, fascia and tendon of other and unspecified finger at forearm level
    Header
  95. S56.401
    Unspecified injury of extensor muscle, fascia and tendon of right index finger at forearm level +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  96. S56.402
    Unspecified injury of extensor muscle, fascia and tendon of left index finger at forearm level +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  97. S56.403
    Unspecified injury of extensor muscle, fascia and tendon of right middle finger at forearm level +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  98. S56.404
    Unspecified injury of extensor muscle, fascia and tendon of left middle finger at forearm level +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  99. S56.405
    Unspecified injury of extensor muscle, fascia and tendon of right ring finger at forearm level +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  100. S56.406
    Unspecified injury of extensor muscle, fascia and tendon of left ring finger at forearm level +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  101. S56.407
    Unspecified injury of extensor muscle, fascia and tendon of right little finger at forearm level +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  102. S56.408
    Unspecified injury of extensor muscle, fascia and tendon of left little finger at forearm level +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  103. S56.409
    Unspecified injury of extensor muscle, fascia and tendon of unspecified finger at forearm level +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  104. S56.41
    Strain of extensor muscle, fascia and tendon of other and unspecified finger at forearm level
    Header
  105. S56.411
    Strain of extensor muscle, fascia and tendon of right index finger at forearm level +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  106. S56.412
    Strain of extensor muscle, fascia and tendon of left index finger at forearm level +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  107. S56.413
    Strain of extensor muscle, fascia and tendon of right middle finger at forearm level +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  108. S56.414
    Strain of extensor muscle, fascia and tendon of left middle finger at forearm level +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  109. S56.415
    Strain of extensor muscle, fascia and tendon of right ring finger at forearm level +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  110. S56.416
    Strain of extensor muscle, fascia and tendon of left ring finger at forearm level +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  111. S56.417
    Strain of extensor muscle, fascia and tendon of right little finger at forearm level +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  112. S56.418
    Strain of extensor muscle, fascia and tendon of left little finger at forearm level +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  113. S56.419
    Strain of extensor muscle, fascia and tendon of finger, unspecified finger at forearm level +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  114. S56.42
    Laceration of extensor muscle, fascia and tendon of other and unspecified finger at forearm level
    Header
  115. S56.421
    Laceration of extensor muscle, fascia and tendon of right index finger at forearm level +7th: A D S
    Needs 7th characterCC AExempt: 2 of 3 7th characters
  116. S56.422
    Laceration of extensor muscle, fascia and tendon of left index finger at forearm level +7th: A D S
    Needs 7th characterCC AExempt: 2 of 3 7th characters
  117. S56.423
    Laceration of extensor muscle, fascia and tendon of right middle finger at forearm level +7th: A D S
    Needs 7th characterCC AExempt: 2 of 3 7th characters
  118. S56.424
    Laceration of extensor muscle, fascia and tendon of left middle finger at forearm level +7th: A D S
    Needs 7th characterCC AExempt: 2 of 3 7th characters
  119. S56.425
    Laceration of extensor muscle, fascia and tendon of right ring finger at forearm level +7th: A D S
    Needs 7th characterCC AExempt: 2 of 3 7th characters
  120. S56.426
    Laceration of extensor muscle, fascia and tendon of left ring finger at forearm level +7th: A D S
    Needs 7th characterCC AExempt: 2 of 3 7th characters
  121. S56.427
    Laceration of extensor muscle, fascia and tendon of right little finger at forearm level +7th: A D S
    Needs 7th characterCC AExempt: 2 of 3 7th characters
  122. S56.428
    Laceration of extensor muscle, fascia and tendon of left little finger at forearm level +7th: A D S
    Needs 7th characterCC AExempt: 2 of 3 7th characters
  123. S56.429
    Laceration of extensor muscle, fascia and tendon of unspecified finger at forearm level +7th: A D S
    Needs 7th characterCC AExempt: 2 of 3 7th characters
  124. S56.49
    Other injury of extensor muscle, fascia and tendon of other and unspecified finger at forearm level
    Header
  125. S56.491
    Other injury of extensor muscle, fascia and tendon of right index finger at forearm level +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  126. S56.492
    Other injury of extensor muscle, fascia and tendon of left index finger at forearm level +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  127. S56.493
    Other injury of extensor muscle, fascia and tendon of right middle finger at forearm level +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  128. S56.494
    Other injury of extensor muscle, fascia and tendon of left middle finger at forearm level +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  129. S56.495
    Other injury of extensor muscle, fascia and tendon of right ring finger at forearm level +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  130. S56.496
    Other injury of extensor muscle, fascia and tendon of left ring finger at forearm level +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  131. S56.497
    Other injury of extensor muscle, fascia and tendon of right little finger at forearm level +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  132. S56.498
    Other injury of extensor muscle, fascia and tendon of left little finger at forearm level +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  133. S56.499
    Other injury of extensor muscle, fascia and tendon of unspecified finger at forearm level +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  134. S56.5
    Injury of other extensor muscle, fascia and tendon at forearm level
    Header
  135. S56.50
    Unspecified injury of other extensor muscle, fascia and tendon at forearm level
    Header
  136. S56.501
    Unspecified injury of other extensor muscle, fascia and tendon at forearm level, right arm +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  137. S56.502
    Unspecified injury of other extensor muscle, fascia and tendon at forearm level, left arm +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  138. S56.509
    Unspecified injury of other extensor muscle, fascia and tendon at forearm level, unspecified arm +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  139. S56.51
    Strain of other extensor muscle, fascia and tendon at forearm level
    Header
  140. S56.511
    Strain of other extensor muscle, fascia and tendon at forearm level, right arm +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  141. S56.512
    Strain of other extensor muscle, fascia and tendon at forearm level, left arm +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  142. S56.519
    Strain of other extensor muscle, fascia and tendon at forearm level, unspecified arm +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  143. S56.52
    Laceration of other extensor muscle, fascia and tendon at forearm level
    Header
  144. S56.521
    Laceration of other extensor muscle, fascia and tendon at forearm level, right arm +7th: A D S
    Needs 7th characterCC AExempt: 2 of 3 7th characters
  145. S56.522
    Laceration of other extensor muscle, fascia and tendon at forearm level, left arm +7th: A D S
    Needs 7th characterCC AExempt: 2 of 3 7th characters
  146. S56.529
    Laceration of other extensor muscle, fascia and tendon at forearm level, unspecified arm +7th: A D S
    Needs 7th characterCC AExempt: 2 of 3 7th characters
  147. S56.59
    Other injury of other extensor muscle, fascia and tendon at forearm level
    Header
  148. S56.591
    Other injury of other extensor muscle, fascia and tendon at forearm level, right arm +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  149. S56.592
    Other injury of other extensor muscle, fascia and tendon at forearm level, left arm +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  150. S56.599
    Other injury of other extensor muscle, fascia and tendon at forearm level, unspecified arm +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  151. S56.8
    Injury of other muscles, fascia and tendons at forearm level
    Header
  152. S56.80
    Unspecified injury of other muscles, fascia and tendons at forearm level
    Header
  153. S56.801
    Unspecified injury of other muscles, fascia and tendons at forearm level, right arm +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  154. S56.802
    Unspecified injury of other muscles, fascia and tendons at forearm level, left arm +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  155. S56.809
    Unspecified injury of other muscles, fascia and tendons at forearm level, unspecified arm +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  156. S56.81
    Strain of other muscles, fascia and tendons at forearm level
    Header
  157. S56.811
    Strain of other muscles, fascia and tendons at forearm level, right arm +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  158. S56.812
    Strain of other muscles, fascia and tendons at forearm level, left arm +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  159. S56.819
    Strain of other muscles, fascia and tendons at forearm level, unspecified arm +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  160. S56.82
    Laceration of other muscles, fascia and tendons at forearm level
    Header
  161. S56.821
    Laceration of other muscles, fascia and tendons at forearm level, right arm +7th: A D S
    Needs 7th characterCC AExempt: 2 of 3 7th characters
  162. S56.822
    Laceration of other muscles, fascia and tendons at forearm level, left arm +7th: A D S
    Needs 7th characterCC AExempt: 2 of 3 7th characters
  163. S56.829
    Laceration of other muscles, fascia and tendons at forearm level, unspecified arm +7th: A D S
    Needs 7th characterCC AExempt: 2 of 3 7th characters
  164. S56.89
    Other injury of other muscles, fascia and tendons at forearm level
    Header
  165. S56.891
    Other injury of other muscles, fascia and tendons at forearm level, right arm +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  166. S56.892
    Other injury of other muscles, fascia and tendons at forearm level, left arm +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  167. S56.899
    Other injury of other muscles, fascia and tendons at forearm level, unspecified arm +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  168. S56.9
    Injury of unspecified muscles, fascia and tendons at forearm level
    Header
  169. S56.90
    Unspecified injury of unspecified muscles, fascia and tendons at forearm level
    Header
  170. S56.901
    Unspecified injury of unspecified muscles, fascia and tendons at forearm level, right arm +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  171. S56.902
    Unspecified injury of unspecified muscles, fascia and tendons at forearm level, left arm +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  172. S56.909
    Unspecified injury of unspecified muscles, fascia and tendons at forearm level, unspecified arm +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  173. S56.91
    Strain of unspecified muscles, fascia and tendons at forearm level
    Header
  174. S56.911
    Strain of unspecified muscles, fascia and tendons at forearm level, right arm +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  175. S56.912
    Strain of unspecified muscles, fascia and tendons at forearm level, left arm +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  176. S56.919
    Strain of unspecified muscles, fascia and tendons at forearm level, unspecified arm +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  177. S56.92
    Laceration of unspecified muscles, fascia and tendons at forearm level
    Header
  178. S56.921
    Laceration of unspecified muscles, fascia and tendons at forearm level, right arm +7th: A D S
    Needs 7th characterCC AExempt: 2 of 3 7th characters
  179. S56.922
    Laceration of unspecified muscles, fascia and tendons at forearm level, left arm +7th: A D S
    Needs 7th characterCC AExempt: 2 of 3 7th characters
  180. S56.929
    Laceration of unspecified muscles, fascia and tendons at forearm level, unspecified arm +7th: A D S
    Needs 7th characterCC AExempt: 2 of 3 7th characters
  181. S56.99
    Other injury of unspecified muscles, fascia and tendons at forearm level
    Header
  182. S56.991
    Other injury of unspecified muscles, fascia and tendons at forearm level, right arm +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  183. S56.992
    Other injury of unspecified muscles, fascia and tendons at forearm level, left arm +7th: A D S
    Needs 7th characterExempt: 2 of 3 7th characters
  184. S56.999
    Other injury of unspecified muscles, fascia and tendons at forearm level, unspecified arm +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 S56

Excludes2

  • injury of muscle, fascia and tendon at or below wrist (S66.-) S66
  • sprain of joints and ligaments of elbow (S53.4-) S53.4

Code also

  • any associated open wound (S51.-) S51

Notes that also apply

Block S50-S59 instructions (Excludes2 4): 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 S56 defined here

The appropriate 7th character is to be added to each code from category S56

7th characters for S56
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

  • Injurymuscle (and fascia) (and tendon)forearm (level) → S56.90-
  • Injurymuscle (and fascia) (and tendon)thumbflexor (forearm level) → S56.00-
  • Injurymuscle (and fascia) (and tendon)fingerflexor (forearm level) → S56.10-
  • Injurymuscle (and fascia) (and tendon)forearm (level)flexor → S56.20-
  • Injurymuscle (and fascia) (and tendon)thumbabductor (forearm level) → S56.30-
  • Injurymuscle (and fascia) (and tendon)thumbextensor (forearm level) → S56.30-
  • Injurymuscle (and fascia) (and tendon)fingerextensor (forearm level) → S56.40-
  • Injurymuscle (and fascia) (and tendon)forearm (level)extensor → S56.50-
  • Injurymuscle (and fascia) (and tendon)forearm (level)strain → S56.91-
  • Injurymuscle (and fascia) (and tendon)forearm (level)laceration → S56.92-
  • Injurymuscle (and fascia) (and tendon)forearm (level)specified → S56.99-
  • Injurymuscle (and fascia) (and tendon)thumbflexor (forearm level)strain → S56.01-
  • Injurymuscle (and fascia) (and tendon)thumbflexor (forearm level)laceration → S56.02-
  • Injurymuscle (and fascia) (and tendon)thumbflexor (forearm level)specified type NEC → S56.09-
  • Injurymuscle (and fascia) (and tendon)fingerflexor (forearm level)strain → S56.119
  • Injurymuscle (and fascia) (and tendon)fingerflexor (forearm level)laceration → S56.129
  • Injurymuscle (and fascia) (and tendon)fingerflexor (forearm level)specified type NEC → S56.199
  • Injurymuscle (and fascia) (and tendon)forearm (level)flexorstrain → S56.21-
  • Injurymuscle (and fascia) (and tendon)forearm (level)flexorlaceration → S56.22-
  • Injurymuscle (and fascia) (and tendon)forearm (level)flexorspecified type NEC → S56.29-
  • Injurymuscle (and fascia) (and tendon)thumbabductor (forearm level)strain → S56.31-
  • Injurymuscle (and fascia) (and tendon)thumbextensor (forearm level)strain → S56.31-
  • Injurymuscle (and fascia) (and tendon)thumbabductor (forearm level)laceration → S56.32-
  • Injurymuscle (and fascia) (and tendon)thumbextensor (forearm level)laceration → S56.32-
  • Injurymuscle (and fascia) (and tendon)thumbabductor (forearm level)specified type NEC → S56.39-
  • Injurymuscle (and fascia) (and tendon)thumbextensor (forearm level)specified type NEC → S56.39-
  • Injurymuscle (and fascia) (and tendon)fingerextensor (forearm level)strain → S56.419
  • Injurymuscle (and fascia) (and tendon)fingerextensor (forearm level)laceration → S56.429
  • Injurymuscle (and fascia) (and tendon)fingerextensor (forearm level)specified type NEC → S56.499
  • Injurymuscle (and fascia) (and tendon)forearm (level)extensorstrain → S56.51-
  • Injurymuscle (and fascia) (and tendon)forearm (level)extensorlaceration → S56.52-
  • Injurymuscle (and fascia) (and tendon)forearm (level)extensorspecified type NEC → S56.59-
  • Injurymuscle (and fascia) (and tendon)forearm (level)specifiedsite NEC → S56.80-
  • Injurymuscle (and fascia) (and tendon)fingerindexflexor (forearm level)strain → S56.11-
  • Injurymuscle (and fascia) (and tendon)fingerlittleflexor (forearm level)strain → S56.11-
  • Injurymuscle (and fascia) (and tendon)fingermiddleflexor (forearm level)strain → S56.11-
  • Injurymuscle (and fascia) (and tendon)fingerringflexor (forearm level)strain → S56.11-
  • Injurymuscle (and fascia) (and tendon)fingerlittleflexor (forearm level)laceration → S56.12-
  • Injurymuscle (and fascia) (and tendon)fingermiddleflexor (forearm level)laceration → S56.12-
  • Injurymuscle (and fascia) (and tendon)fingerringflexor (forearm level)laceration → S56.12-

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

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

Hierarchy