Age-related choroidal atrophy, bilateral

This code signifies the presence of age-related thinning and degeneration of the choroid, the vascular layer of the eye, affecting both eyes. This atrophy is a common age-related change that can impact retinal health and vision. It is distinct from other forms of choroidal atrophy or retinal degeneration.

Apply this code when documentation explicitly states age-related choroidal atrophy affecting both eyes. This diagnosis is typically made following ophthalmoscopic examination, optical coherence tomography (OCT), or fluorescein angiography. Ensure the physician's notes specify the bilateral involvement and the age-related etiology.

• Differentiate from other choroidal atrophies (e.g., H31.10, H31.12) by confirming the age-related etiology and bilateral involvement.
• Do not use if only one eye is affected; instead, select the appropriate unilateral code (H31.111 or H31.112).
• Code any associated visual impairment or other ocular conditions separately.