E71.521Billable
Adolescent X-linked adrenoleukodystrophy
- Chapter
- 4. Endocrine, nutritional and metabolic diseases
- Category
- E71
- Effective date
- October 1, 2026
Related codes in category E71
E71Disord of branched-chain amino-acid metab & fatty-acid metabE71.0Maple-syrup-urine diseaseYesE71.1Other disorders of branched-chain amino-acid metabolismE71.11Branched-chain organic aciduriasE71.110Isovaleric acidemiaYesE71.1113-methylglutaconic aciduriaYesE71.118Other branched-chain organic aciduriasYesE71.12Disorders of propionate metabolismE71.120Methylmalonic acidemiaYesE71.121Propionic acidemiaYesE71.128Other disorders of propionate metabolismYesE71.19Other disorders of branched-chain amino-acid metabolismYes
Frequently asked questions
What is ICD-10 code E71.521?
E71.521 is an ICD-10-CM diagnosis code for Adolescent X-linked adrenoleukodystrophy.
Is E71.521 a billable code?
Yes. E71.521 is billable and specific enough to be used on a claim.
What ICD-10-CM chapter is E71.521 in?
E71.521 falls under Chapter 4: Endocrine, nutritional and metabolic diseases.
When did E71.521 become effective?
E71.521 has been effective since October 1, 2026, per the CMS/CDC ICD-10-CM annual release.
What other codes are related to E71.521?
E71.521 belongs to category E71, which includes 12 other codes — see the related codes list on this page.
ICD-10-CM data maintained by CDC/CMS (public domain). Always verify codes with authoritative sources before making coding or billing decisions.