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ICD-10-CM 2027 diagnosis code

H35.1Retinopathy of prematurity

Not billable — use a more specific code

H35.1 is a header code, so it can't be reported by itself. Choose one of the 8 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 H35.1

H35.1 is the ICD-10-CM diagnosis code for retinopathy of prematurity. 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 8 subcodes must be used instead.

Within H35 (other retinal disorders), H35.1 is specifically for retinopathy of prematurity. Related codes cover background retinopathy and retinal vascular changes (H35.0), other non-diabetic proliferative retinopathy (H35.2), degeneration of macula and posterior pole (H35.3), peripheral retinal degeneration (H35.4), hereditary retinal dystrophy (H35.5), retinal hemorrhage (H35.6), separation of retinal layers (H35.7), other specified retinal disorders (H35.8) and 1 more.

To report this condition, pick the subcode that matches the documentation: H35.10 (unspecified), H35.11 (stage 0), H35.12 (stage 1), H35.13 (stage 2), H35.14 (stage 3), H35.15 (stage 4), H35.16 (stage 5) and H35.17 (fibroplasia).

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 H35.1

Notes that apply from higher levels

Instructions written at a parent level also apply to H35.1.

› From H35 Other retinal disorders
Excludes2

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

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 H35.1

Is H35.1 billable?

No. H35.1 is a header code. Report one of its more specific subcodes instead.