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ICD-10-CM 2027 diagnosis code

H35.01Changes in retinal vascular appearance

Not billable — use a more specific code

H35.01 is a header code, so it can't be reported by itself. Choose one of the 4 more specific codes beneath it.

Looking up by condition? See ICD-10 code for Sheathing.

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 H35.01

H35.01 is the ICD-10-CM diagnosis code for changes in retinal vascular appearance. It belongs to category H35 (other retinal disorders), 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 4 subcodes must be used instead.

Within H35.0 (background retinopathy and retinal vascular changes), H35.01 is specifically for changes in retinal vascular appearance. Related codes cover unspecified background retinopathy (H35.00), Exudative retinopathy (H35.02), hypertensive retinopathy (H35.03), retinal micro-aneurysms, unspecified (H35.04), retinal neovascularization, unspecified (H35.05), retinal vasculitis (H35.06), retinal telangiectasis (H35.07) and other intraretinal microvascular abnormalities (H35.09).

To report this condition, pick the subcode that matches the documentation: H35.011 (right eye), H35.012 (left eye), H35.013 (bilateral) and H35.019 (unspecified eye).

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 H35.01

Coding notes

Applicable toConditions and synonyms classified to this code
  • Retinal vascular sheathing

Notes that apply from higher levels

Instructions written at a parent level also apply to H35.01.

› From H35.0 Background retinopathy and retinal vascular changes
Code also
  • any associated hypertension (I10)
› From H35 Other retinal disorders
Excludes2

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

Alphabetic index entries

2 entries

Terms in the official ICD-10-CM index that lead to H35.01.

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)
  • No changes since FY2016.

Common questions about H35.01

Is H35.01 billable?

No. H35.01 is a header code. Report one of its more specific subcodes instead.