ICD-10 S88
Non-Billable HeaderTraumatic amputation of lower leg
About ICD-10-CM S88
ICD-10-CM code S88 represents Traumatic amputation of lower leg. This is a non-billable header code in the Injury, Poisoning, and External Causes chapter (block S88). The 2026 edition of ICD-10-CM S88 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 S88
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.
Inclusion Terms / Approximate Synonyms
Clinical terms and conditions classified under S88. Per CMS ICD-10-CM Tabular 2026.
- An amputation not identified as partial or complete should be coded to complete
Type 1 Excludes
Pure excludes, these codes can never be coded together with S88. The conditions are mutually exclusive (e.g., congenital vs acquired forms).
- traumatic amputation of ankle and foot (S98.-)
Coding Notes
Seven Chr Note
- The appropriate 7th character is to be added to each code from category S88
Medicare LCD Coverage for S88
Local Coverage Determinations (LCDs) from CMS MACs that list S88 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 S88.
1 Aetna
CPT Codes Commonly Billed with S88
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 S88
Other codes in section S80-S89 (Injuries to the knee and lower leg).
ICD-10 S88, Billing FAQ
Is ICD-10 code S88 billable? +
No, S88 is a non-billable header code. Use a more specific child code from block S88 when submitting claims.
What other names or terms map to S88? +
ICD-10 S88 includes: An amputation not identified as partial or complete should be coded to complete.
What codes are Type 1 Excludes for S88? +
Type 1 Excludes (never code together with S88): traumatic amputation of ankle and foot (S98.-)
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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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