ICD-10 E79
Non-Billable HeaderDisorders of purine and pyrimidine metabolism
About ICD-10-CM E79
ICD-10-CM code E79 represents Disorders of purine and pyrimidine metabolism. This is a non-billable header code in the Endocrine, Nutritional, and Metabolic chapter (block E79). The 2026 edition of ICD-10-CM E79 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 E79. The conditions are mutually exclusive (e.g., congenital vs acquired forms).
- Ataxia-telangiectasia (Q87.19)
- Bloom's syndrome (Q82.8)
- Cockayne's syndrome (Q87.19)
- calculus of kidney (N20.0)
- combined immunodeficiency disorders (D81.-)
- Fanconi's anemia (D61.09)
- gout (M1A.-, M10.-)
- orotaciduric anemia (D53.0)
- progeria (E34.8)
- Werner's syndrome (E34.8)
- xeroderma pigmentosum (Q82.1)
Medicare LCD Coverage for E79
Local Coverage Determinations (LCDs) from CMS MACs that list E79 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 E79.
Our payer policy database covers Aetna, Cigna, Anthem, BCBS, Humana, and Medicare Advantage plans, but E79 doesn't currently appear in any indexed policy. The code may still be covered under standard plan benefits.
CPT Codes Commonly Billed with E79
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 E79
Other codes in section E70-E88 (Metabolic disorders).
ICD-10 E79, Billing FAQ
Is ICD-10 code E79 billable? +
No, E79 is a non-billable header code. Use a more specific child code from block E79 when submitting claims.
What codes are Type 1 Excludes for E79? +
Type 1 Excludes (never code together with E79): Ataxia-telangiectasia (Q87.19); Bloom's syndrome (Q82.8); Cockayne's syndrome (Q87.19)
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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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