J4A.0: Restrictive allograft syndrome
J4A.0 is the billable ICD-10-CM diagnosis code for Restrictive allograft syndrome. 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 J4A.0?
J4A.0 is the ICD-10-CM diagnosis code for Restrictive allograft syndrome. It belongs to category J4A (Chronic lung allograft dysfunction).
Is J4A.0 a billable code?
Yes. J4A.0 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 J4A.0 belong to?
J4A.0 is part of ICD-10-CM category J4A — Chronic lung allograft dysfunction, which has 6 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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