ICD-10-CM Alphabetic Index · FY 2026 118 Entries
Endometriosis in the ICD-10-CM Index ICD-10-CM
The main term Endometriosis carries 118 index entries pointing to 91 ICD-10-CM codes. The default entry is N80.9, the code the bare main term maps to; every indented line below refines the term by site, cause, or type. Verify any candidate code in the Tabular List before using it.
✓ Built from the official CMS FY 2026 index fileEffective Oct 1, 2025 – Sep 30, 2026
118
Index Entries
91
Codes Referenced
N80.9
Default Code
E
Letter
118 of 118 shown
ICD-10-CM
Index Entries Under Endometriosis 118 entries · 91 codes
Endometriosis N80.9
abdomen, abdominal N80.C0
specified site, NEC N80.C9
wall N80.C19
fascia and muscular layers N80.C11
subcutaneous tissue N80.C10
unspecified depth N80.C19
appendix N80.549
deep N80.542
superficial N80.541
bladder (unspecified depth) N80.A0
deep N80.A2
superficial N80.A1
bowel N80.50
broad ligament N80.3C Non-billable
cardiothoracic space N80.B6
cecum N80.539
deep N80.532
superficial N80.531
cervix N80.0- Non-billable
colon N80.559
descending N80.559
deep N80.552
superficial N80.551
sigmoid N80.529
deep N80.522
superficial N80.521
transverse N80.559
deep N80.552
superficial N80.551
cul-de-sac (Douglas')
anterior (unspecified depth) N80.319
deep N80.312
superficial N80.311
posterior (unspecified depth) N80.329
deep N80.322
superficial N80.321
deep
involving muscular wall of fallopian tube N80.22 Non-billable
retrocervical N80.02
diaphragm N80.B39
deep N80.B32
superficial N80.B31
unspecified depth N80.B39
exocervix N80.01
extra-pelvic abdominal peritoneum N80.C4
fallopian tube (unspecified depth) N80.20- Non-billable
deep N80.22- Non-billable
superficial N80.21- Non-billable
female genital organ NEC N80.8
gallbladder N80.8
inguinal canal N80.C3
in scar of skin N80.6
internal N80.02
intestine N80.50
small N80.569
deep (multifocal) N80.562
superficial N80.561
lung N80.B2
mediastinal space N80.B5
myometrium N80.03
nerve
femoral N80.D6
obturator N80.D3
pelvic N80.D0
splanchnic N80.D1
pudendal N80.D5
retroperitoneum, NEC N80.D9
sacral splanchnic N80.D1
sciatic N80.D4
specified, NEC N80.D9
ovary (unspecified depth) N80.10- Non-billable
deep N80.12- Non-billable
superficial N80.11- Non-billable
parametrium N80.399
pelvic
brim N80.38- Non-billable
deep N80.37- Non-billable
superficial N80.36- Non-billable
peritoneum N80.30
specified sites, NEC N80.399
deep N80.392
superficial N80.391
sidewall N80.35- Non-billable
deep N80.34- Non-billable
superficial N80.33- Non-billable
pericardial space N80.B4
peritoneal (pelvic) N80.30
pleura N80.B1
rectovaginal septum N80.40
with involvement of vagina N80.42
without involvement of vagina N80.41
rectum N80.519
deep (multifocal) N80.512
superficial N80.511
retroperitoneum N80.30
round ligament N80.3C9
sacral nerve roots N80.D2
skin (scar) N80.6
specified site NEC N80.8
stromal D39.0
thorax N80.B- Non-billable
umbilicus N80.C2
ureter N80.A69
deep N80.A5- Non-billable
extrinsic N80.A4- Non-billable
intrinsic N80.A5- Non-billable
superficial N80.A4- Non-billable
unspecified depth N80.A6- Non-billable
uterosacral ligament (s) N80.3C- Non-billable
deep N80.3B- Non-billable
superficial N80.3A- Non-billable
uterus N80.00
deep N80.02
internal N80.02
superficial N80.01
vagina N80.42
vulva N80.8
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Related Index Terms
Source: Centers for Medicare & Medicaid Services, FY 2026 ICD-10-CM Index to Diseases and Injuries release files, effective October 1, 2025 through September 30, 2026.
