ICD-10-CM 2027 diagnosis code

H31Other disorders of choroid

Not billable — use a more specific code

H31 is a header code, so it can't be reported by itself. Choose one of the 7 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 H31

H31 is the ICD-10-CM diagnosis code for other disorders of choroid. It belongs to block H30-H36 (disorders of choroid and retina) and chapter 7 (diseases of the eye and adnexa). It is a header code, so it can't be reported by itself; one of its 7 subcodes must be used instead.

To report this condition, pick the subcode that matches the documentation: H31.0 (scars), H31.1 (degeneration), H31.2 (dystrophy), H31.3 (rupture), H31.4 (detachment), H31.8 (choroid) and H31.9 (choroid).

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 H31

Notes that apply from higher levels

Instructions written at a parent level also apply to H31.

Broader instructions also apply from Chapter 7: Diseases of the eye and adnexa.

Codes whose notes reference H31

H44.2AUse additional code

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 H31

Is H31 billable?: No. H31 is a header code. Report one of its more specific subcodes instead.