ICD-10 S79
Non-Billable HeaderOther and unspecified injuries of hip and thigh
About ICD-10-CM S79
ICD-10-CM code S79 represents Other and unspecified injuries of hip and thigh. This is a non-billable header code in the Injury, Poisoning, and External Causes chapter (block S79). The 2026 edition of ICD-10-CM S79 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.
Coding Tips for S79
Specialist guidance from the PayerReady Medical Coding Team. Specificity warnings, HCC capture rules, sequencing notes.
Injury codes require a 7th character: A (initial encounter, active treatment), D (subsequent, healing/recovery), S (sequela, late effect of original injury). Codes with fewer than 6 characters need the placeholder X to bring them to 6 characters before adding the 7th. Wrong or missing 7th character is the #1 cause of injury claim denials.
Coding Notes
Seven Chr Note
- The appropriate 7th character is to be added to each code from subcategories S79.0 and S79.1
Medicare LCD Coverage for S79
Local Coverage Determinations (LCDs) from CMS MACs that list S79 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 S79.
1 Aetna
1 Cigna
CPT Codes Commonly Billed with S79
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 S79
Other codes in section S70-S79 (Injuries to the hip and thigh).
ICD-10 S79, Billing FAQ
Is ICD-10 code S79 billable? +
No, S79 is a non-billable header code. Use a more specific child code from block S79 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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