ICD-10 Q73
Non-Billable HeaderReduction defects of unspecified limb
About ICD-10-CM Q73
ICD-10-CM code Q73 represents Reduction defects of unspecified limb. This is a non-billable header code in the Congenital Malformations chapter (block Q73). The 2026 edition of ICD-10-CM Q73 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 Q73
Local Coverage Determinations (LCDs) from CMS MACs that list Q73 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 Q73.
Our payer policy database covers Aetna, Cigna, Anthem, BCBS, Humana, and Medicare Advantage plans, but Q73 doesn't currently appear in any indexed policy. The code may still be covered under standard plan benefits.
CPT Codes Commonly Billed with Q73
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 Q73
Other codes in section Q65-Q79 (Congenital malformations and deformations of the musculoskeletal system).
ICD-10 Q73, Billing FAQ
Is ICD-10 code Q73 billable? +
No, Q73 is a non-billable header code. Use a more specific child code from block Q73 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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