ICD-10 Code H35.149 – Retinopathy of prematurity, stage 3, unspecified eye (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H35.149 – Retinopathy of prematurity, stage 3, unspecified eye
What it is
This code identifies retinopathy of prematurity at stage 3 when the affected eye is not specified. It applies to premature infants with abnormal retinal blood vessel growth severe enough to reach stage 3.
Clinical signs
Stage 3 retinopathy of prematurity is characterized by extraretinal fibrovascular proliferation, often described as ridge-like neovascular tissue. Clinical features vary; refer to documentation.
When to use this code
Use this code when the provider documents stage 3 retinopathy of prematurity but does not identify the right eye, left eye, or bilateral involvement. It also fits when the chart confirms stage 3 disease and laterality is not recorded. Check documentation if the eye is specified elsewhere in the record.
Do not use for
Do not use this code for earlier or later stages of retinopathy of prematurity, or for unspecified retinopathy without stage 3 documentation. Do not assume laterality if the provider did not state it.
Coding tip
Review ophthalmology notes carefully for stage and laterality before assigning H35.149.