Try for free

H35.1 ICD-10-CA code: Retinopathy of prematurity

H35.1 is the ICD-10-CA code for “Retinopathy of prematurity” in CIHI’s FY 2026–2027 release, in effect from Apr 1, 2026.

Official description

H35.1

Retinopathy of prematurity

ICD-10-CA · Canada · Also written H351

Index terms

Entries in CIHI’s alphabetical index that lead to H35.1. Searching the index by the condition the note names is how coders reach this code.

  • Fibroplasia, retrolental
  • Retinopathy (background) (Coats) (exudative) (hypertensive), of prematurity

Notes for H35.1

As CIHI prints them, with any note H35.1 takes from the headings above it.

Includes

  • Retrolental fibroplasia

Excludes

Conditions classified elsewhere.

  • Certain:• conditions originating in the perinatal period (P00-P96)• infectious and parasitic diseases (A00-B99)complications of pregnancy, childbirth and the puerperium (O00-O99)congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)endocrine, nutritional and metabolic diseases (E00-E90)injury, poisoning and certain other consequences of external causes (S00-T98)neoplasms (C00-D48)symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R99)From Chapter 7: Diseases of the eye and adnexa (H00-H59)

Where H35.1 sits

  1. 1ChapterChapter 7: Diseases of the eye and adnexa (H00-H59)
  2. 2Block H30-H36Disorders of choroid and retina
  3. 3Category H35Other retinal disorders
  4. 4Valid code H35.1Retinopathy of prematurity

Source and release

Data release
ICD-10-CA · FY 2026–2027
Effective date
Apr 1, 2026
Publisher
CIHI

This page is built from the ICD-10-CA catalog that Vero Codes reads when it suggests codes: Canadian Institute for Health Information’s FY 2026–2027 release, imported from the publisher’s file and checked against it. The description, notes and structured data come from the same record.

See H35.1 in the CIHI source

Frequently asked questions

What does ICD-10-CA code H35.1 mean?

H35.1 is the ICD-10-CA code for “Retinopathy of prematurity” in CIHI’s ICD-10-CA FY 2026–2027 release.

Where is H35.1 in ICD-10-CA?

H35.1 sits under H35 Other retinal disorders, within H30-H36 Disorders of choroid and retina, within Chapter 7: Diseases of the eye and adnexa (H00-H59).

What coding notes apply to H35.1?

ICD-10-CA lists Includes, Excludes notes for H35.1, including those from the headings it sits under. They are listed on this page with where each one comes from.

Which ICD-10-CA release does this page use?

It uses CIHI’s FY 2026–2027 release, in effect from Apr 1, 2026 to Mar 31, 2027. It is a reference: confirm the code against the current list and the payer’s rules before you submit it.

Codes beside H35.1

H35.0Background retinopathy and retinal vascular changesH35.2Other proliferative retinopathyH35.3Degeneration of macula and posterior poleH35.4Peripheral retinal degenerationH35.5Hereditary retinal dystrophyH35.6Retinal haemorrhageH35.7Separation of retinal layersH35.8Other specified retinal disordersH35.9Retinal disorder, unspecified