DxCodebookFY2027 · Oct 1, 2026 – Sep 30, 2027

Category · FY2027

N80 Endometriosis

  • Header · not billable

N80 is not billable. The category heads 138 billable codes in FY2027, grouped under 13 subdivisions.

Index → code

Where it sits

  1. Chapter 14 Diseases of the genitourinary system (N00-N99)
  2. N80-N98 Noninflammatory disorders of female genital tract (N80-N98)
  3. N80 Endometriosis
Billable codes
138
Subdivisions
13
CC / MCC codes
0 / 0
HCC V28 codes
0
New FY2027
0
Index entries
127

Codes in N80

  1. N80.0
    Endometriosis of uterus
    Header
    Inclusion terms 1, Excludes1 1

    Inclusion terms

    • Endometriosis of the cervix

    Excludes1

    • stromal endometriosis (D39.0) D39.0
  2. N80.00
    Endometriosis of the uterus, unspecified
    Billable
  3. N80.01
    Superficial endometriosis of the uterus
    Billable
  4. N80.02
    Deep endometriosis of the uterus
    Billable
    Inclusion terms 1

    Inclusion terms

    • Deep retrocervical endometriosis
  5. N80.03
    Adenomyosis of the uterus
    Billable
    Inclusion terms 1

    Inclusion terms

    • Adenomyosis NOS
  6. N80.1
    Endometriosis of ovary
    Header
  7. N80.10
    Endometriosis of ovary, unspecified depth
    Header
  8. N80.101
    Endometriosis of right ovary, unspecified depth
    Billable
  9. N80.102
    Endometriosis of left ovary, unspecified depth
    Billable
  10. N80.103
    Endometriosis of bilateral ovaries, unspecified depth
    Billable
  11. N80.109
    Endometriosis of ovary, unspecified side, unspecified depth
    Billable
    Inclusion terms 1

    Inclusion terms

    • Endometriosis of ovary NOS
  12. N80.11
    Superficial endometriosis of the ovary
    Header
  13. N80.111
    Superficial endometriosis of right ovary
    Billable
  14. N80.112
    Superficial endometriosis of left ovary
    Billable
  15. N80.113
    Superficial endometriosis of bilateral ovaries
    Billable
  16. N80.119
    Superficial endometriosis of ovary, unspecified ovary
    Billable
  17. N80.12
    Deep endometriosis of ovary
    Header
    Inclusion terms 2

    Inclusion terms

    • Deep ovarian endometriosis
    • Endometrioma
  18. N80.121
    Deep endometriosis of right ovary
    Billable
  19. N80.122
    Deep endometriosis of left ovary
    Billable
  20. N80.123
    Deep endometriosis of bilateral ovaries
    Billable
  21. N80.129
    Deep endometriosis of ovary, unspecified ovary
    Billable
  22. N80.2
    Endometriosis of fallopian tube
    Header
  23. N80.20
    Endometriosis of fallopian tube, unspecified depth
    Header
  24. N80.201
    Endometriosis of right fallopian tube, unspecified depth
    Billable
  25. N80.202
    Endometriosis of left fallopian tube, unspecified depth
    Billable
  26. N80.203
    Endometriosis of bilateral fallopian tubes, unspecified depth
    Billable
  27. N80.209
    Endometriosis of unspecified fallopian tube, unspecified depth
    Billable
    Inclusion terms 1

    Inclusion terms

    • Endometriosis fallopian tube NOS
  28. N80.21
    Superficial endometriosis of fallopian tube
    Header
  29. N80.211
    Superficial endometriosis of right fallopian tube
    Billable
  30. N80.212
    Superficial endometriosis of left fallopian tube
    Billable
  31. N80.213
    Superficial endometriosis of bilateral fallopian tubes
    Billable
  32. N80.219
    Superficial endometriosis of unspecified fallopian tube
    Billable
  33. N80.22
    Deep endometriosis of the fallopian tube
    Header
    Inclusion terms 1

    Inclusion terms

    • Deep endometriosis involving muscular wall of fallopian tube
  34. N80.221
    Deep endometriosis of right fallopian tube
    Billable
  35. N80.222
    Deep endometriosis of left fallopian tube
    Billable
  36. N80.223
    Deep endometriosis of bilateral fallopian tubes
    Billable
  37. N80.229
    Deep endometriosis of unspecified fallopian tube
    Billable
  38. N80.3
    Endometriosis of pelvic peritoneum
    Header
  39. N80.30
    Endometriosis of pelvic peritoneum, unspecified
    Billable
    Inclusion terms 1

    Inclusion terms

    • Endometriosis of the retroperitoneum NOS
  40. N80.31
    Endometriosis of the anterior cul-de-sac
    Header
  41. N80.311
    Superficial endometriosis of the anterior cul-de-sac
    Billable
  42. N80.312
    Deep endometriosis of the anterior cul-de-sac
    Billable
  43. N80.319
    Endometriosis of the anterior cul-de-sac, unspecified depth
    Billable
    Inclusion terms 1

    Inclusion terms

    • Endometriosis of the anterior cul-de-sac NOS
  44. N80.32
    Endometriosis of the posterior cul-de-sac
    Header
  45. N80.321
    Superficial endometriosis of the posterior cul-de-sac
    Billable
  46. N80.322
    Deep endometriosis of the posterior cul-de-sac
    Billable
  47. N80.329
    Endometriosis of the posterior cul-de-sac, unspecified depth
    Billable
    Inclusion terms 1

    Inclusion terms

    • Endometriosis of the posterior cul-de-sac NOS
  48. N80.33
    Superficial endometriosis of the pelvic sidewall
    Header
  49. N80.331
    Superficial endometriosis of the right pelvic sidewall
    Billable
  50. N80.332
    Superficial endometriosis of the left pelvic sidewall
    Billable
  51. N80.333
    Superficial endometriosis of bilateral pelvic sidewall
    Billable
  52. N80.339
    Superficial endometriosis of pelvic sidewall, unspecified side
    Billable
  53. N80.34
    Deep endometriosis of the pelvic sidewall
    Header
  54. N80.341
    Deep endometriosis of the right pelvic sidewall
    Billable
  55. N80.342
    Deep endometriosis of the left pelvic sidewall
    Billable
  56. N80.343
    Deep endometriosis of the bilateral pelvic sidewall
    Billable
  57. N80.349
    Deep endometriosis of the pelvic sidewall, unspecified side
    Billable
  58. N80.35
    Endometriosis of the pelvic sidewall, unspecified depth
    Header
  59. N80.351
    Endometriosis of the right pelvic sidewall, unspecified depth
    Billable
  60. N80.352
    Endometriosis of the left pelvic sidewall, unspecified depth
    Billable
  61. N80.353
    Endometriosis of bilateral pelvic sidewall, unspecified depth
    Billable
  62. N80.359
    Endometriosis of pelvic sidewall, unspecified side, unspecified depth
    Billable
    Inclusion terms 1

    Inclusion terms

    • Endometriosis of the pelvic sidewall NOS
  63. N80.36
    Superficial endometriosis of the pelvic brim
    Header
  64. N80.361
    Superficial endometriosis of the right pelvic brim
    Billable
  65. N80.362
    Superficial endometriosis of the left pelvic brim
    Billable
  66. N80.363
    Superficial endometriosis of bilateral pelvic brim
    Billable
  67. N80.369
    Superficial endometriosis of the pelvic brim, unspecified side
    Billable
  68. N80.37
    Deep endometriosis of the pelvic brim
    Header
  69. N80.371
    Deep endometriosis of the right pelvic brim
    Billable
  70. N80.372
    Deep endometriosis of the left pelvic brim
    Billable
  71. N80.373
    Deep endometriosis of bilateral pelvic brim
    Billable
  72. N80.379
    Deep endometriosis of the pelvic brim, unspecified side
    Billable
  73. N80.38
    Endometriosis of the pelvic brim, unspecified depth
    Header
  74. N80.381
    Endometriosis of the right pelvic brim, unspecified depth
    Billable
  75. N80.382
    Endometriosis of the left pelvic brim, unspecified depth
    Billable
  76. N80.383
    Endometriosis of bilateral pelvic brim, unspecified depth
    Billable
  77. N80.389
    Endometriosis of the pelvic brim, unspecified side, unspecified depth
    Billable
    Inclusion terms 1

    Inclusion terms

    • Endometriosis of the pelvic brim NOS
  78. N80.3A
    Superficial endometriosis of the uterosacral ligament(s)
    Header
  79. N80.3A1
    Superficial endometriosis of the right uterosacral ligament
    Billable
  80. N80.3A2
    Superficial endometriosis of the left uterosacral ligament
    Billable
  81. N80.3A3
    Superficial endometriosis of the bilateral uterosacral ligament(s)
    Billable
  82. N80.3A9
    Superficial endometriosis of the uterosacral ligament(s), unspecified side
    Billable
  83. N80.3B
    Deep endometriosis of the uterosacral ligament(s)
    Header
  84. N80.3B1
    Deep endometriosis of the right uterosacral ligament
    Billable
  85. N80.3B2
    Deep endometriosis of the left uterosacral ligament
    Billable
  86. N80.3B3
    Deep endometriosis of bilateral uterosacral ligament(s)
    Billable
  87. N80.3B9
    Deep endometriosis of the uterosacral ligament(s), unspecified side
    Billable
  88. N80.3C
    Endometriosis of the uterosacral ligament(s), unspecified depth
    Header
  89. N80.3C1
    Endometriosis of the right uterosacral ligament, unspecified depth
    Billable
  90. N80.3C2
    Endometriosis of the left uterosacral ligament, unspecified depth
    Billable
  91. N80.3C3
    Endometriosis of bilateral uterosacral ligament(s), unspecified depth
    Billable
  92. N80.3C9
    Endometriosis of the uterosacral ligament(s), unspecified side, unspecified depth
    Billable
    Inclusion terms 1

    Inclusion terms

    • Endometriosis of the uterosacral ligament(s) NOS
  93. N80.39
    Endometriosis of other pelvic peritoneum
    Header
  94. N80.391
    Superficial endometriosis of the pelvic peritoneum, other specified sites
    Billable
  95. N80.392
    Deep endometriosis of the pelvic peritoneum, other specified sites
    Billable
  96. N80.399
    Endometriosis of the pelvic peritoneum, other specified sites, unspecified depth
    Billable
  97. N80.4
    Endometriosis of rectovaginal septum and vagina
    Header
  98. N80.40
    Endometriosis of rectovaginal septum, unspecified involvement of vagina
    Billable
    Inclusion terms 1

    Inclusion terms

    • Endometriosis of the rectovaginal septum, NOS
  99. N80.41
    Endometriosis of rectovaginal septum without involvement of vagina
    Billable
  100. N80.42
    Endometriosis of rectovaginal septum with involvement of vagina
    Billable
  101. N80.5
    Endometriosis of intestine
    Header
  102. N80.50
    Endometriosis of intestine, unspecified
    Billable
  103. N80.51
    Endometriosis of the rectum
    Header
  104. N80.511
    Superficial endometriosis of the rectum
    Billable
  105. N80.512
    Deep endometriosis of the rectum
    Billable
    Inclusion terms 1

    Inclusion terms

    • Deep endometriosis of the rectum, multifocal
  106. N80.519
    Endometriosis of the rectum, unspecified depth
    Billable
    Inclusion terms 1

    Inclusion terms

    • Endometriosis of the rectum NOS
  107. N80.52
    Endometriosis of the sigmoid colon
    Header
  108. N80.521
    Superficial endometriosis of the sigmoid colon
    Billable
  109. N80.522
    Deep endometriosis of the sigmoid colon
    Billable
  110. N80.529
    Endometriosis of the sigmoid colon, unspecified depth
    Billable
    Inclusion terms 1

    Inclusion terms

    • Endometriosis of the sigmoid colon NOS
  111. N80.53
    Endometriosis of the cecum
    Header
  112. N80.531
    Superficial endometriosis of the cecum
    Billable
  113. N80.532
    Deep endometriosis of the cecum
    Billable
  114. N80.539
    Endometriosis of the cecum, unspecified depth
    Billable
    Inclusion terms 1

    Inclusion terms

    • Endometriosis of the cecum NOS
  115. N80.54
    Endometriosis of the appendix
    Header
  116. N80.541
    Superficial endometriosis of the appendix
    Billable
  117. N80.542
    Deep endometriosis of the appendix
    Billable
  118. N80.549
    Endometriosis of the appendix, unspecified depth
    Billable
    Inclusion terms 1

    Inclusion terms

    • Endometriosis of the appendix NOS
  119. N80.55
    Endometriosis of other parts of the colon
    Header
    Inclusion terms 2

    Inclusion terms

    • Endometriosis of descending colon
    • Endometriosis of transverse colon
  120. N80.551
    Superficial endometriosis of other parts of the colon
    Billable
  121. N80.552
    Deep endometriosis of other parts of the colon
    Billable
  122. N80.559
    Endometriosis of other parts of the colon, unspecified depth
    Billable
    Inclusion terms 1

    Inclusion terms

    • Endometriosis of colon NOS
  123. N80.56
    Endometriosis of the small intestine
    Header
  124. N80.561
    Superficial endometriosis of the small intestine
    Billable
  125. N80.562
    Deep endometriosis of the small intestine
    Billable
    Inclusion terms 1

    Inclusion terms

    • Deep endometriosis of the small intestine, multifocal
  126. N80.569
    Endometriosis of the small intestine, unspecified depth
    Billable
    Inclusion terms 1

    Inclusion terms

    • Endometriosis of the small intestine NOS
  127. N80.6
    Endometriosis in cutaneous scar
    Billable
  128. N80.A
    Endometriosis of bladder and ureters
    Header
  129. N80.A0
    Endometriosis of bladder, unspecified depth
    Billable
    Inclusion terms 1

    Inclusion terms

    • Endometriosis of bladder NOS
  130. N80.A1
    Superficial endometriosis of bladder
    Billable
  131. N80.A2
    Deep endometriosis of bladder
    Billable
  132. N80.A4
    Superficial endometriosis of ureter
    Header
    Inclusion terms 1, Code also 1

    Inclusion terms

    • Extrinsic endometriosis of ureter

    Code also

    • , if applicable, obstructive and reflux uropathy (N13.-) N13
  133. N80.A41
    Superficial endometriosis of right ureter
    Billable
  134. N80.A42
    Superficial endometriosis of left ureter
    Billable
  135. N80.A43
    Superficial endometriosis of bilateral ureters
    Billable
  136. N80.A49
    Superficial endometriosis of unspecified ureter
    Billable
  137. N80.A5
    Deep endometriosis of ureter
    Header
    Inclusion terms 1, Code also 1

    Inclusion terms

    • Intrinsic endometriosis of ureter

    Code also

    • , if applicable, obstructive and reflux uropathy (N13.-) N13
  138. N80.A51
    Deep endometriosis of right ureter
    Billable
  139. N80.A52
    Deep endometriosis of left ureter
    Billable
  140. N80.A53
    Deep endometriosis of bilateral ureters
    Billable
  141. N80.A59
    Deep endometriosis of unspecified ureter
    Billable
  142. N80.A6
    Endometriosis of ureter, unspecified depth
    Header
    Code also 1

    Code also

    • , if applicable, obstructive and reflux uropathy (N13.-) N13
  143. N80.A61
    Endometriosis of right ureter, unspecified depth
    Billable
  144. N80.A62
    Endometriosis of left ureter, unspecified depth
    Billable
  145. N80.A63
    Endometriosis of bilateral ureters, unspecified depth
    Billable
  146. N80.A69
    Endometriosis of unspecified ureter, unspecified depth
    Billable
  147. N80.B
    Endometriosis of cardiothoracic space
    Header
    Inclusion terms 1, Code also 3

    Inclusion terms

    • Endometriosis of thorax

    Code also

    • , if applicable:
    • catamenial hemothorax (J94.2) J94.2
    • catamenial pneumothorax (J93.12) J93.12
  148. N80.B1
    Endometriosis of pleura
    Billable
  149. N80.B2
    Endometriosis of lung
    Billable
  150. N80.B3
    Endometriosis of diaphragm
    Header
  151. N80.B31
    Superficial endometriosis of diaphragm
    Billable
  152. N80.B32
    Deep endometriosis of diaphragm
    Billable
  153. N80.B39
    Endometriosis of diaphragm, unspecified depth
    Billable
    Inclusion terms 1

    Inclusion terms

    • Endometriosis of the diaphragm NOS
  154. N80.B4
    Endometriosis of the pericardial space
    Billable
  155. N80.B5
    Endometriosis of the mediastinal space
    Billable
  156. N80.B6
    Endometriosis of cardiothoracic space
    Billable
  157. N80.C
    Endometriosis of the abdomen
    Header
  158. N80.C0
    Endometriosis of the abdomen, unspecified
    Billable
    Inclusion terms 1

    Inclusion terms

    • Endometriosis of the abdomen NOS
  159. N80.C1
    Endometriosis of the anterior abdominal wall
    Header
  160. N80.C10
    Endometriosis of the anterior abdominal wall, subcutaneous tissue
    Billable
  161. N80.C11
    Endometriosis of the anterior abdominal wall, fascia and muscular layers
    Billable
  162. N80.C19
    Endometriosis of the anterior abdominal wall, unspecified depth
    Billable
    Inclusion terms 1

    Inclusion terms

    • Endometriosis of the anterior abdominal wall NOS
  163. N80.C2
    Endometriosis of the umbilicus
    Billable
  164. N80.C3
    Endometriosis of the inguinal canal
    Billable
  165. N80.C4
    Endometriosis of extra-pelvic abdominal peritoneum
    Billable
  166. N80.C9
    Endometriosis of other site of abdomen
    Billable
  167. N80.D
    Endometriosis of the pelvic nerves
    Header
    Inclusion terms 1

    Inclusion terms

    • Endometriosis of the nerves of the retroperitoneum
  168. N80.D0
    Endometriosis of the pelvic nerves, unspecified
    Billable
    Inclusion terms 1

    Inclusion terms

    • Endometriosis of nerve of the retroperitoneum, NOS
  169. N80.D1
    Endometriosis of the sacral splanchnic nerves
    Billable
    Inclusion terms 1

    Inclusion terms

    • Endometriosis of the pelvic splanchnic nerves
  170. N80.D2
    Endometriosis of the sacral nerve roots
    Billable
  171. N80.D3
    Endometriosis of the obturator nerve
    Billable
  172. N80.D4
    Endometriosis of the sciatic nerve
    Billable
  173. N80.D5
    Endometriosis of the pudendal nerve
    Billable
  174. N80.D6
    Endometriosis of the femoral nerve
    Billable
  175. N80.D9
    Endometriosis of other pelvic nerve
    Billable
    Inclusion terms 1

    Inclusion terms

    • Endometriosis of the other nerves of the retroperitoneum
  176. N80.8
    Other endometriosis
    Billable
    Inclusion terms 1

    Inclusion terms

    • Endometriosis of other site
  177. N80.9
    Endometriosis, unspecified
    Billable

Sources of each column.

Instructions

Notes that also apply

Chapter 14 instructions (Excludes2 8): printed on the chapter 14 page.

Index entries

  • Adenomyometritis → N80.00
  • Adenomyosis (uterus) → N80.03
  • Chocolate cyst (ovary) → N80.10-
  • Sampson's cyst or tumor → N80.10-
  • Transplants, ovarian, endometrial → N80.10-
  • Endometrioma → N80.12-
  • Endometriosis → N80.9
  • Implant, endometrial → N80.9
  • Endometriosiscervix → N80.0-
  • Adenofibrosisendometrioid → N80.00
  • Endometriosisuterus → N80.00
  • Endometriosisexocervix → N80.01
  • Endometriosisinternal → N80.02
  • Endometriosismyometrium → N80.03
  • Cyst (colloid) (mucous) (simple) (retention)chocolate (ovary) → N80.10-
  • Cyst (colloid) (mucous) (simple) (retention)Sampson's → N80.10-
  • Cystomaendometrial, ovary → N80.10-
  • Endometriosisovary (unspecified depth) → N80.10-
  • TumorSampson's → N80.10-
  • Endometriosisfallopian tube (unspecified depth) → N80.20-
  • Endometriosisperitoneal (pelvic) → N80.30
  • Endometriosisretroperitoneum → N80.30
  • Endometriosisbroad ligament → N80.3C
  • Endometriosisuterosacral ligament(s) → N80.3C-
  • Endometriosisround ligament → N80.3C9
  • Endometriosisparametrium → N80.399
  • Endometriosisrectovaginal septum → N80.40
  • Endometriosisvagina → N80.42
  • Endometriosisbowel → N80.50
  • Endometriosisintestine → N80.50
  • Endometriosisrectum → N80.519
  • Endometriosiscecum → N80.539
  • Endometriosisappendix → N80.549
  • Endometriosiscolon → N80.559
  • Endometriosisin scar of skin → N80.6
  • Endometriosisskin (scar) → N80.6
  • Endometriosisbladder (unspecified depth) → N80.A0
  • Endometriosisureter → N80.A69
  • Endometriosisthorax → N80.B-
  • Endometriosispleura → N80.B1

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

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

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