N80
Endometriosis
Not billable — category only FY2026 2025-10-01 → 2026-09-30
Exclusions 8 never code together
N00-N99chapter
Excludes2
- certain conditions originating in the perinatal period (P04-P96)P04-P96
- certain infectious and parasitic diseases (A00-B99)A00-B99
- complications of pregnancy, childbirth and the puerperium (O00-O9A)O00-O9A
- congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)Q00-Q99
- endocrine, nutritional and metabolic diseases (E00-E88)E00-E88
- injury, poisoning and certain other consequences of external causes (S00-T88)S00-T88
- neoplasms (C00-D49)C00-D49
- symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)R00-R94
Excludes2 — not included here, but the patient may have both. Code both when documented.
Instructional notes
No further instructional notes apply.
Index entries leading here filed at null
No alphabetic index entry points at this code.
Subordinate codes 13
N80.0 Endometriosis of uterus N80.1 Endometriosis of ovary N80.2 Endometriosis of fallopian tube N80.3 Endometriosis of pelvic peritoneum N80.4 Endometriosis of rectovaginal septum and vagina N80.5 Endometriosis of intestine N80.6 Endometriosis in cutaneous scar N80.A Endometriosis of bladder and ureters N80.B Endometriosis of cardiothoracic space N80.C Endometriosis of the abdomen N80.D Endometriosis of the pelvic nerves N80.8 Other endometriosis N80.9 Endometriosis, unspecified
Medications 1
MED-RT files conditions by MeSH, which carves the world differently from ICD-10. These are name matches on this code's description, offered as candidates — not as an assertion that they are this code.
Additional references
AHA Coding Clinic® Licence required
Official coding advice for this code. Published by the American Hospital Association. Not included in this installation.