ICD-10-CM 2027 diagnosis code

N80.22Deep endometriosis of the fallopian tube

Not billable — use a more specific code

N80.22 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 N80.22

N80.22 is the ICD-10-CM diagnosis code for deep endometriosis of the fallopian tube. 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 N80.2 (endometriosis of fallopian tube), N80.22 is specifically for deep endometriosis of the fallopian tube. Related codes cover unspecified depth (N80.20) and superficial endometriosis of fallopian tube (N80.21).

To report this condition, pick the subcode that matches the documentation: N80.221 (tube), N80.222 (tube), N80.223 (tubes) and N80.229 (tube).

It was added in FY2023, effective October 1, 2022.

Specific codes under N80.22

Coding notes

Applicable toConditions and synonyms classified to this code

Deep endometriosis involving muscular wall of fallopian tube

Notes that apply from higher levels

Instructions written at a parent level also apply to N80.22.

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

Alphabetic index entries

2 entries

Terms in the official ICD-10-CM index that lead to N80.22.

Code history

2016
2017
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2021
2022
2023
2024
2025
2026
2027

FY2023 (effective 10/1/2022): Added
No changes since FY2023.

Common questions about N80.22

Is N80.22 billable?: No. N80.22 is a header code. Report one of its more specific subcodes instead.