ICD-10 K61
Non-Billable HeaderAbscess of anal and rectal regions
About ICD-10-CM K61
ICD-10-CM code K61 represents Abscess of anal and rectal regions. This is a non-billable header code in the Digestive System chapter (block K61). The 2026 edition of ICD-10-CM K61 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.
Includes
- abscess of anal and rectal regions
- cellulitis of anal and rectal regions
Medicare LCD Coverage for K61
Local Coverage Determinations (LCDs) from CMS MACs that list K61 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 K61.
Our payer policy database covers Aetna, Cigna, Anthem, BCBS, Humana, and Medicare Advantage plans, but K61 doesn't currently appear in any indexed policy. The code may still be covered under standard plan benefits.
CPT Codes Commonly Billed with K61
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 K61
Other codes in section K55-K64 (Other diseases of intestines).
ICD-10 K61, Billing FAQ
Is ICD-10 code K61 billable? +
No, K61 is a non-billable header code. Use a more specific child code from block K61 when submitting claims.
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Reviewed by the PayerReady Medical Coding Team
Verified against the CMS 2026 code set on June 1, 2026.
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