E71.521: Adolescent X-linked adrenoleukodystrophy
E71.521 is the billable ICD-10-CM diagnosis code for Adolescent X-linked adrenoleukodystrophy. 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 E71.521?
E71.521 is the ICD-10-CM diagnosis code for Adolescent X-linked adrenoleukodystrophy. It belongs to category E71 (Disorders of branched-chain amino-acid metabolism and fatty-acid metabolism).
Is E71.521 a billable code?
Yes. E71.521 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 E71.521 belong to?
E71.521 is part of ICD-10-CM category E71 — Disorders of branched-chain amino-acid metabolism and fatty-acid metabolism, which has 76 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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