ICD-10 E71.3
Non-Billable HeaderDisorders of fatty-acid metabolism
About ICD-10-CM E71.3
ICD-10-CM code E71.3 represents Disorders of fatty-acid metabolism. This is a non-billable header code in the Endocrine, Nutritional, and Metabolic chapter (block E71). The 2026 edition of ICD-10-CM E71.3 became effective on October 1, 2025. Non-billable codes cannot be used as a primary or secondary diagnosis on a claim, use a more specific child code instead.
Type 1 Excludes
Pure excludes, these codes can never be coded together with E71.3. The conditions are mutually exclusive (e.g., congenital vs acquired forms).
- peroxisomal disorders (E71.5)
- Refsum's disease (G60.1)
- Schilder's disease (G37.0)
Type 2 Excludes
Not included here, the excluded code is not part of E71.3, but a patient may have both conditions at the same time. Both codes may be coded together when applicable.
- carnitine deficiency due to inborn error of metabolism (E71.42)
Medicare LCD Coverage for E71.3
Local Coverage Determinations (LCDs) from CMS MACs that list E71.3 as a covered diagnosis.
This doesn't mean the code isn't covered, it means no MAC has issued a Local Coverage Determination naming this specific code. Coverage may still apply under National Coverage Determinations or general medical-necessity rules.
Commercial Payer Coverage
Coverage policies from major commercial payers referencing E71.3.
Our payer policy database covers Aetna, Cigna, Anthem, BCBS, Humana, and Medicare Advantage plans, but E71.3 doesn't currently appear in any indexed policy. The code may still be covered under standard plan benefits.
CPT Codes Commonly Billed with E71.3
Procedures frequently paired with this diagnosis based on PayerReady's Dx↔Px linkage data.
We don't have CPT pairings indexed for this specific code yet. Use the CPT search above to find common procedures, or check your payer's published medical policy for code-specific guidance.
Codes Adjacent To E71.3
Other codes in section E70-E88 (Metabolic disorders).
ICD-10 E71.3, Billing FAQ
Is ICD-10 code E71.3 billable? +
No, E71.3 is a non-billable header code. Use a more specific child code from block E71 when submitting claims.
What codes are Type 1 Excludes for E71.3? +
Type 1 Excludes (never code together with E71.3): peroxisomal disorders (E71.5); Refsum's disease (G60.1); Schilder's disease (G37.0)
What codes are Type 2 Excludes for E71.3? +
Type 2 Excludes (may be coded together when both conditions exist): carnitine deficiency due to inborn error of metabolism (E71.42)
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Reviewed by the PayerReady Medical Coding Team
Verified against the CMS 2026 code set on May 31, 2026.
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