S88.121D is the authoritative medical code for Partial traumatic amputation at level between knee and ankle, right lower leg, subsequent encounter. This classification is used in medical billing and clinical recording to specify the clinical criteria for partial traumatic amputation at level between knee and ankle, right lower leg, subsequent encounter (ICD-10-CM S88.121D), ensuring healthcare documentation aligns with 2026 federal coding standards.
Billing Status: YES. This is a valid, specific, and billable ICD-10-CM reference.
Official Registry Overview & Definition
Partial traumatic amputation at level between knee and ankle, right lower leg, subsequent encounter is a billable ICD-10-CM diagnosis code S88.121D. 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 S88.121D in the official ICD-10-CM tabular list.
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
Does S88.121D 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 S88.121D?
Per Excludes1 instructions, S88.121D must not be reported with: traumatic amputation of ankle and foot (S98.-).
Can S88.121D be reported alongside related conditions?
Per Excludes2 instructions, S88.121D 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).
Codes in This Family (40)
Official ICD-10-CM classifications in the same code family as S88.121D, with their registry titles.
- S88 — Traumatic amputation of lower leg
- S88.0 — Traumatic amputation at knee level
- S88.01 — Complete 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
- S88.02 — Partial traumatic amputation at knee level
- 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
- S88.11 — Complete 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
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 S83.121D
Posterior subluxation of proximal end of tibia, right knee, subsequent encounter
ICD Code S85.121D
Other specified injury of unspecified tibial artery, right leg, subsequent encounter
ICD Code S86.121D
Laceration of other muscle(s) and tendon(s) of posterior muscle group at lower leg level, right leg, subsequent encounter
ICD Code S89.121D
Salter-Harris Type II physeal fracture of lower end of right tibia, subsequent encounter for fracture with routine healing
ICD Code S90.121D
Contusion of right lesser toe(s) without damage to nail, subsequent encounter
ICD Code S91.121D
Laceration with foreign body of right great toe without damage to nail, subsequent encounter
ICD Code S92.121D
Displaced fracture of body of right talus, subsequent encounter for fracture with routine healing
ICD Code S93.121D
Dislocation of metatarsophalangeal joint of right great toe, subsequent encounter