ICD-10-CM 2027 diagnosis code

H33Retinal detachments and breaks

Not billable — use a more specific code

H33 is a header code, so it can't be reported by itself. Choose one of the 6 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 H33

H33 is the ICD-10-CM diagnosis code for retinal detachments and breaks. 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 6 subcodes must be used instead.

To report this condition, pick the subcode that matches the documentation: H33.0 (break), H33.1 (cysts), H33.2 (detachment), H33.3 (detachment), H33.4 (retina) and H33.8 (detachments).

Don't report H33 together with the conditions in its Excludes1 note: detachment of retinal pigment epithelium (H35.72-, H35.73-).

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 H33

Coding notes

Excludes1Not coded here — never report together with this code

detachment of retinal pigment epithelium (H35.72-, H35.73-)

Notes that apply from higher levels

Instructions written at a parent level also apply to H33.

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

Codes whose notes reference H33

H44.2CUse 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 H33

Is H33 billable?: No. H33 is a header code. Report one of its more specific subcodes instead.