ICD-10 Code H35.122 – Retinopathy of prematurity, stage 1, left eye (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H35.122 – Retinopathy of prematurity, stage 1, left eye
What it is
This code identifies stage 1 retinopathy of prematurity affecting the left eye. It means a premature infant has a mild retinal abnormality, usually seen on eye examination, with a demarcation line between vascular and avascular retina.
Clinical signs
Findings are based on ophthalmologic screening rather than symptoms. Stage 1 is characterized by a thin demarcation line in the retina; clinical features vary, so refer to documentation.
When to use this code
Use H35.122 when the record specifically documents retinopathy of prematurity, stage 1, in the left eye. It is appropriate for screening follow-up, specialist assessment, or problem lists when the diagnosis is confirmed. Code only the documented eye laterality.
Do not use for
Do not use this code for other stages of retinopathy of prematurity, unspecified laterality, or a history of prematurity without active retinal disease. Check documentation if the stage or eye is not clearly stated.
Coding tip
Confirm the stage and laterality from the ophthalmology note before assigning H35.122.