ICD-10-CM 2027 diagnosis code
H71.2Cholesteatoma of mastoid
H71.2 is a header code, so it can't be reported by itself. Choose one of the 4 more specific codes beneath it.
Code unchanged since ICD-10-CM took effect on October 1, 2015. Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data
About H71.2
H71.2 is the ICD-10-CM diagnosis code for cholesteatoma of mastoid. It belongs to category H71 (cholesteatoma of middle ear), block H65-H75 (diseases of middle ear and mastoid) and chapter 8 (diseases of the ear and mastoid process). It is a header code, so it can't be reported by itself; one of its 4 subcodes must be used instead.
Within H71 (cholesteatoma of middle ear), H71.2 is specifically for cholesteatoma of mastoid. Related codes cover cholesteatoma of attic (H71.0), cholesteatoma of tympanum (H71.1), diffuse cholesteatosis (H71.3) and unspecified cholesteatoma (H71.9).
To report this condition, pick the subcode that matches the documentation: H71.20 (unspecified ear), H71.21 (right ear), H71.22 (left ear) and H71.23 (bilateral).
It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.
Specific codes under H71.2
Notes that apply from higher levels
Instructions written at a parent level also apply to H71.2.
Broader instructions also apply from Chapter 8: Diseases of the ear and mastoid process.
Alphabetic index entries
1 entriesTerms in the official ICD-10-CM index that lead to H71.2.
Code history
- 2016
- 2017
- 2018
- 2019
- 2020
- 2021
- 2022
- 2023
- 2024
- 2025
- 2026
- 2027
- FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
- No changes since FY2016.
Common questions about H71.2
Is H71.2 billable?
- No. H71.2 is a header code. Report one of its more specific subcodes instead.