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ICD-10-CM 2027 diagnosis code

N80.0Endometriosis of uterus

Not billable — use a more specific code

N80.0 is a header code, so it can't be reported by itself. Choose one of the 4 more specific codes beneath it.

Code last changed in FY2023 (effective October 1, 2022). Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data

About N80.0

N80.0 is the ICD-10-CM diagnosis code for endometriosis of uterus. It belongs to category N80 (endometriosis), block N80-N98 (noninflammatory disorders of female genital tract) and chapter 14 (diseases of the genitourinary system). It is a header code, so it can't be reported by itself; one of its 4 subcodes must be used instead.

Within N80 (endometriosis), N80.0 is specifically for endometriosis of uterus. Related codes cover of ovary (N80.1), of fallopian tube (N80.2), of pelvic peritoneum (N80.3), of rectovaginal septum and vagina (N80.4), of intestine (N80.5), in cutaneous scar (N80.6), other endometriosis (N80.8), unspecified (N80.9) and 4 more.

To report this condition, pick the subcode that matches the documentation: N80.00 (unspecified), N80.01 (uterus), N80.02 (uterus) and N80.03 (uterus).

Don't report N80.0 together with the conditions in its Excludes1 note: stromal endometriosis (D39.0).

It has been part of ICD-10-CM since the code set took effect on October 1, 2015, and changed in FY2023 (expanded into subcodes).

Before ICD-10, this condition was coded in ICD-9-CM as 617.0 (endometriosis of uterus).

Specific codes under N80.0

Coding notes

Applicable toConditions and synonyms classified to this code
  • Endometriosis of the cervix
Excludes1Not coded here — never report together with this code
  • stromal endometriosis (D39.0)

Notes that apply from higher levels

Instructions written at a parent level also apply to N80.0.

Broader instructions also apply from Chapter 14: Diseases of the genitourinary system.

Alphabetic index entries

1 entries

Terms in the official ICD-10-CM index that lead to N80.0.

ICD-9-CM equivalent

Converter →
  • 617.0Endometriosis of uterusexact

From the CMS 2018 General Equivalence Mappings (GEMs), the final GEMs release.

Code history

  1. 2016
  2. 2017
  3. 2018
  4. 2019
  5. 2020
  6. 2021
  7. 2022
  8. 2023
  9. 2024
  10. 2025
  11. 2026
  12. 2027
  • FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
  • FY2023 (effective 10/1/2022): Expanded — no longer billable

Common questions about N80.0

Is N80.0 billable?

No. N80.0 is a header code. Report one of its more specific subcodes instead.

What is the ICD-9 code for N80.0?

The CMS General Equivalence Mappings map N80.0 to ICD-9-CM 617.0.