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ICD-10-CM 2027 diagnosis code

H36Retinal disorders in diseases classified elsewhere

Not billable — use a more specific code

H36 is a header code, so it can't be reported by itself. Choose one of the 1 more specific codes beneath it.

Code last changed in FY2024 (effective October 1, 2023). Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data

About H36

H36 is the ICD-10-CM diagnosis code for retinal disorders in diseases classified elsewhere. 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 1 subcodes must be used instead.

To report this condition, pick the subcode that matches the documentation: H36.8 (elsewhere).

Don't report H36 together with the conditions in its Excludes1 note: arteriosclerotic retinopathy (H35.0-) and diabetic retinopathy (E08.3-, E09.3-, E10.3-, E11.3-, E13.3-).

Code first underlying disease, such as: lipid storage disorders (E75.-) and sickle-cell disorders (D57.-).

It has been part of ICD-10-CM since the code set took effect on October 1, 2015, and changed in FY2024 (expanded into subcodes).

Before ICD-10, this condition was coded in ICD-9-CM as 362.71 (retinal dystrophy in systemic or cerebroretinal lipidoses) and 362.72 (retinal dystrophy in other systemic disorders and syndromes).

Specific codes under H36

Coding notes

Excludes1Not coded here — never report together with this code
Code firstSequence the underlying condition first
  • underlying disease, such as:
  • lipid storage disorders (E75.-)
  • sickle-cell disorders (D57.-)

Notes that apply from higher levels

Instructions written at a parent level also apply to H36.

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

ICD-9-CM equivalent

Converter →
  • 362.71Retinal dystrophy in systemic or cerebroretinal lipidosesapproximate
  • 362.72Retinal dystrophy in other systemic disorders and syndromesapproximate

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)
  • FY2024 (effective 10/1/2023): Expanded — no longer billable

Common questions about H36

Is H36 billable?

No. H36 is a header code. Report one of its more specific subcodes instead.

What is the ICD-9 code for H36?

The CMS General Equivalence Mappings map H36 to ICD-9-CM 362.71 and 362.72.