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E71.521

E71.521: Adolescent X-linked adrenoleukodystrophy

Billable / specific codeICD-10-CM

E71.521 is a billable, specific ICD-10-CM code for adolescent x-linked adrenoleukodystrophy. It is valid for submission on a claim.

Check E71.521 with the rest of the claim: free scrubber

Excludes1 inherited from the categories above E71.521

A category’s note binds every code beneath it.

Written on E71.5: Peroxisomal disorders

  • Schilder's disease (G37.0)

Risk adjustment

No CMS-HCC V28 category: this code does not change a RAF score.

Medicare coverage

E71.521 is named in 1 Medicare coverage policy: 1 listing it as supporting medical necessity. Which one applies depends on your Medicare contractor.

  • A56773Billing and Coding: Neurophysiology Evoked Potentials (NEPs)

Alphabetic index entries that lead here

  • Adolescent X-linked adrenoleukodystrophy
  • Adrenoleukodystrophy›X-linked›adolescent
  • Disorder›peroxisomal›X-linked adrenoleukodystrophy›adolescent

Code history

Unchanged in every release from FY2024 to FY2027.

Other codes under E71.52

ICD-10-CMFY2027· effective October 1, 2026

Loaded directly from the CMS/NCHS ICD-10-CM public-domain release: see data sources and our editorial policy. If this page disagrees with the CMS tabular list, this page is wrong. Reference information for professional coders; not medical or billing advice.