E71.31 – Disorders of fatty-acid oxidation

ICD-10-CM 2027 diagnosis code · Metabolic disorders

Non-billable header

ICD-10-CM code E71.31
Code
E71.31 (claims format: E7131)
Description
Disorders of fatty-acid oxidation
Billable
No – use a more specific code below
Valid for
Dates of service October 1, 2026 – September 30, 2027 (FY2027)
Chapter
4. Endocrine, nutritional and metabolic diseases (E00-E89)
Block
E70-E88 Metabolic disorders
Parent codes
E71 › E71.3

Billable codes under E71.31

E71.31 is a header code and cannot be used on claims. Choose the most specific code:

Notes inherited from parent codes

Instructional notes at a category or block level apply to every code below it.

E71.3 – Disorders of fatty-acid metabolism

Excludes1 (not coded here):
  • peroxisomal disorders (E71.5)
  • Refsum's disease (G60.1)
  • Schilder's disease (G37.0)
Excludes2 (not included here):
  • carnitine deficiency due to inborn error of metabolism (E71.42)

Block E70-E88

Excludes1 (not coded here):
  • androgen insensitivity syndrome (E34.5-)
  • congenital adrenal hyperplasia (E25.0)
  • hemolytic anemias attributable to enzyme disorders (D55.-)
  • Marfan syndrome (Q87.4-)
  • 5-alpha-reductase deficiency (E29.1)
Excludes2 (not included here):
  • Ehlers-Danlos syndromes (Q79.6-)

Related codes in E71.3

Frequently asked questions

What is ICD-10 code E71.31?

E71.31 is the ICD-10-CM code for disorders of fatty-acid oxidation, in the block E70-E88 (Metabolic disorders).

Is E71.31 a billable code?

No. E71.31 is a header code with more specific child codes; report one of the billable codes listed above.

What category does E71.31 belong to?

It belongs to category E71 – Disorders of branched-chain amino-acid metabolism and fatty-acid metabolism.

Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.