H31.121: Diffuse secondary atrophy of choroid, right eye
H31.121 is the billable ICD-10-CM diagnosis code for Diffuse secondary atrophy of choroid, right eye. It is a fully specified code, so it can be reported on a claim (subject to clinical documentation and your payer's rules).
Frequently asked questions
What is ICD-10-CM code H31.121?
H31.121 is the ICD-10-CM diagnosis code for Diffuse secondary atrophy of choroid, right eye. It belongs to category H31 (Other disorders of choroid).
Is H31.121 a billable code?
Yes. H31.121 is a billable, fully specified ICD-10-CM code, so it can be used on a claim (subject to documentation and payer rules).
What category does H31.121 belong to?
H31.121 is part of ICD-10-CM category H31 — Other disorders of choroid, which has 118 billable codes.
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Informational only, not coding or medical advice. Verify against the official ICD-10-CM (FY2026) and your payer's guidelines.
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