ICD-10 Code H35.109 – Retinopathy of prematurity, unspecified, unspecified eye (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H35.109 – Retinopathy of prematurity, unspecified, unspecified eye
What it is
H35.109 identifies retinopathy of prematurity when the affected eye is not specified. Use it for premature infants with retinal vascular disease, but without laterality or stage details in the record.
Clinical signs
Clinical features vary; refer to documentation. Typical findings may include abnormal retinal blood vessel development on ophthalmic examination in an infant born prematurely.
When to use this code
Use this code when the provider documents retinopathy of prematurity and does not identify the right or left eye. It also fits when the chart confirms the condition but omits stage or eye laterality. Check documentation if laterality is available elsewhere in the record.
Do not use for
Do not use this code if the record specifies a different eye, a different stage, or another retinal disorder. Do not assign it when retinopathy of prematurity is only suspected. Check documentation.
Coding tip
Always look for laterality and stage before defaulting to an unspecified code.