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E71.31

E71.31: Disorders of fatty-acid oxidation

Non-billable headerICD-10-CM

E71.31 is a non-billable header ICD-10-CM code for disorders of fatty-acid oxidation. It cannot be billed on its own: choose one of the more specific child codes below.

Excludes1 inherited from the categories above E71.31

A category’s note binds every code beneath it.

Written on E71.3: Disorders of fatty-acid metabolism

  • peroxisomal disorders (E71.5)
  • Refsum's disease (G60.1)
  • Schilder's disease (G37.0)

Excludes2 inherited from the categories above E71.31

Not part of this code, but both may be coded when both are present.

Written on E71.3: Disorders of fatty-acid metabolism

  • carnitine deficiency due to inborn error of metabolism (E71.42)

Other codes that can never be billed with E71.31

Their own Excludes1 notes name this code, so the conflict is not listed above.

  • E71.4Disorders of carnitine metabolism
  • E72.3Disorders of lysine and hydroxylysine metabolism

Risk adjustment

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

Code history

Unchanged in every release from FY2024 to FY2027.

Code to one of these instead E71.31

6 child codes. Green means billable.

Other codes under E71.3

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.