Retinopathy of prematurity, stage 3, unspecified eye

This code signifies a severe form of retinopathy of prematurity (ROP) where abnormal blood vessels grow from the retina into the vitreous, often accompanied by ridge formation and extraretinal fibrovascular proliferation. Stage 3 ROP indicates a significant risk of retinal detachment and vision impairment in premature infants.

This code is appropriate when a premature infant is diagnosed with Stage 3 ROP, and the specific eye affected (right or left) is not documented. Documentation should clearly state "retinopathy of prematurity, stage 3" without laterality specified.

• Only use this code when the laterality is truly unspecified; otherwise, use the more specific codes for right (H35.141) or left (H35.142) eye.
• Ensure the medical record explicitly states "Stage 3" ROP. Do not infer the stage.
• Consider co-reporting with codes for prematurity (P07.xx) and other associated conditions.