S88 is the authoritative medical code for Traumatic amputation of lower leg. This classification is used in medical billing and clinical recording to specify the clinical criteria for traumatic amputation of lower leg (ICD-10-CM S88), ensuring healthcare documentation aligns with 2026 federal coding standards.
Billing Status: NO. This is a clinician non-billable / parent hierarchy grouping in the ICD-10-CM system.
Official Registry Overview & Definition
Traumatic amputation of lower leg is a non-billable ICD-10-CM category code S88. A more specific billable subcode must be selected for claims submission. Inclusion terms: An amputation not identified as partial or complete should be coded to complete. Excludes1 (not coded here): traumatic amputation of ankle and foot S98.-. Excludes2 (not included here): burns and corrosions T20-T32; frostbite T33-T34; injuries of ankle and foot, except fracture of ankle and malleolus S90-S99; insect bite or sting, venomous T63.4. 7th character: The appropriate 7th character is to be added to each code from category S88.
Official Tabular Instructional Notes
Sequencing, inclusion, and exclusion notes published for S88 in the official ICD-10-CM tabular list.
Inclusion Terms
Alternative terms the tabular list files under this code.
- An amputation not identified as partial or complete should be coded to complete
Excludes1 — Not Coded Here
Conditions that can never be reported with this code; the two are mutually exclusive.
- traumatic amputation of ankle and foot S98.-
Excludes2 — Not Included Here
Conditions not covered by this code, but which may be reported alongside it when both are present.
- burns and corrosions T20-T32
- frostbite T33-T34
- injuries of ankle and foot, except fracture of ankle and malleolus S90-S99
- insect bite or sting, venomous T63.4
Frequently Asked Questions (FAQ) & Clinical Guidance
Can S88 be billed directly?
No. S88 (Traumatic amputation of lower leg) is a non-billable ICD-10-CM category code. A more specific billable subcode must be selected based on clinical documentation.
Does S88 require a 7th character?
Yes. The appropriate 7th character is to be added to each code from category S88.
What can't be coded together with S88?
Per Excludes1 instructions, S88 must not be reported with: traumatic amputation of ankle and foot (S98.-).
Can S88 be reported alongside related conditions?
Per Excludes2 instructions, S88 and the following may both be reported when both are present: burns and corrosions (T20-T32); frostbite (T33-T34); injuries of ankle and foot, except fracture of ankle and malleolus (S90-S99); insect bite or sting, venomous (T63.4).
What conditions are included under S88?
Traumatic amputation of lower leg includes: An amputation not identified as partial or complete should be coded to complete.
Codes in This Family (40)
Official ICD-10-CM classifications in the same code family as S88, with their registry titles.
- S88.0 — Traumatic amputation at knee level
- S88.011 — Complete traumatic amputation at knee level, right lower leg
- S88.011A — Complete traumatic amputation at knee level, right lower leg, initial encounter
- S88.011D — Complete traumatic amputation at knee level, right lower leg, subsequent encounter
- S88.011S — Complete traumatic amputation at knee level, right lower leg, sequela
- S88.012 — Complete traumatic amputation at knee level, left lower leg
- S88.012A — Complete traumatic amputation at knee level, left lower leg, initial encounter
- S88.012D — Complete traumatic amputation at knee level, left lower leg, subsequent encounter
- S88.012S — Complete traumatic amputation at knee level, left lower leg, sequela
- S88.019 — Complete traumatic amputation at knee level, unspecified lower leg
- S88.019A — Complete traumatic amputation at knee level, unspecified lower leg, initial encounter
- S88.019D — Complete traumatic amputation at knee level, unspecified lower leg, subsequent encounter
- S88.019S — Complete traumatic amputation at knee level, unspecified lower leg, sequela
- S88.021 — Partial traumatic amputation at knee level, right lower leg
- S88.021A — Partial traumatic amputation at knee level, right lower leg, initial encounter
- S88.021D — Partial traumatic amputation at knee level, right lower leg, subsequent encounter
- S88.021S — Partial traumatic amputation at knee level, right lower leg, sequela
- S88.022 — Partial traumatic amputation at knee level, left lower leg
- S88.022A — Partial traumatic amputation at knee level, left lower leg, initial encounter
- S88.022D — Partial traumatic amputation at knee level, left lower leg, subsequent encounter
- S88.022S — Partial traumatic amputation at knee level, left lower leg, sequela
- S88.029 — Partial traumatic amputation at knee level, unspecified lower leg
- S88.029A — Partial traumatic amputation at knee level, unspecified lower leg, initial encounter
- S88.029D — Partial traumatic amputation at knee level, unspecified lower leg, subsequent encounter
- S88.029S — Partial traumatic amputation at knee level, unspecified lower leg, sequela
- S88.1 — Traumatic amputation at level between knee and ankle
- S88.111 — Complete traumatic amputation at level between knee and ankle, right lower leg
- S88.111A — Complete traumatic amputation at level between knee and ankle, right lower leg, initial encounter
- S88.111D — Complete traumatic amputation at level between knee and ankle, right lower leg, subsequent encounter
- S88.111S — Complete traumatic amputation at level between knee and ankle, right lower leg, sequela
- S88.112 — Complete traumatic amputation at level between knee and ankle, left lower leg
- S88.112A — Complete traumatic amputation at level between knee and ankle, left lower leg, initial encounter
- S88.112D — Complete traumatic amputation at level between knee and ankle, left lower leg, subsequent encounter
- S88.112S — Complete traumatic amputation at level between knee and ankle, left lower leg, sequela
- S88.119 — Complete traumatic amputation at level between knee and ankle, unspecified lower leg
- S88.119A — Complete traumatic amputation at level between knee and ankle, unspecified lower leg, initial encounter
- S88.119D — Complete traumatic amputation at level between knee and ankle, unspecified lower leg, subsequent encounter
- S88.119S — Complete traumatic amputation at level between knee and ankle, unspecified lower leg, sequela
- S88.121 — Partial traumatic amputation at level between knee and ankle, right lower leg
- S88.121A — Partial traumatic amputation at level between knee and ankle, right lower leg, initial encounter
Related Codes & Numerical Sequence (Crawl Map)
Search engines and indexers are advised to traverse adjacent medical codes in this sub-chapter range to find correlated diagnoses or therapeutic procedures:
ICD Code S83
Dislocation and sprain of joints and ligaments of knee
ICD Code S86
Injury of muscle, fascia and tendon at lower leg level
ICD Code S93
Dislocation and sprain of joints and ligaments at ankle, foot and toe level