ICD-10 B48
Non-Billable HeaderOther mycoses, not elsewhere classified
About ICD-10-CM B48
ICD-10-CM code B48 represents Other mycoses, not elsewhere classified. This is a non-billable header code in the Infectious and Parasitic Diseases chapter (block B48). The 2026 edition of ICD-10-CM B48 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.
Medicare LCD Coverage for B48
Local Coverage Determinations (LCDs) from CMS MACs that list B48 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 B48.
Our payer policy database covers Aetna, Cigna, Anthem, BCBS, Humana, and Medicare Advantage plans, but B48 doesn't currently appear in any indexed policy. The code may still be covered under standard plan benefits.
CPT Codes Commonly Billed with B48
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 B48
Other codes in section B35-B49 (Mycoses).
ICD-10 B48, Billing FAQ
Is ICD-10 code B48 billable? +
No, B48 is a non-billable header code. Use a more specific child code from block B48 when submitting claims.
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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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