Traumatic amputation of lower leg (S88) ICD-10-CM
The S88 code range covers traumatic amputation of lower leg with 82 ICD-10-CM diagnosis codes. 54 of them are billable and valid for claim submission in fiscal year 2026, and the category headers group them but cannot themselves be billed.
Inclusion Terms
These terms are the conditions for which that code is to be used. The terms may be synonyms of the code title, or, in the case of "other specified" codes, the terms are a list of the various conditions assigned to that code. The inclusion terms are not necessarily exhaustive. Additional terms found only in the Alphabetic Index may also be assigned to a code.
- An amputation not identified as partial or complete should be coded to complete
Type 1 Excludes
A type 1 excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
- traumatic amputation of ankle and foot S98
7th Character Note
Certain ICD-10-CM categories have applicable 7th characters. The applicable 7th character is required for all codes within the category, or as the notes in the Tabular List instruct. The 7th character must always be the 7th character in the data field. If a code that requires a 7th character is not 6 characters, a placeholder X must be used to fill in the empty characters.
- The appropriate 7th character is to be added to each code from category S88
7th Character
Indicates that a seventh character is to be assigned to codes in a subcategory.
- A - initial encounter
- D - subsequent encounter
- S - sequela
Codes in the S88 Range 82 codes · 54 billable
- S88 Traumatic amputation of lower legNon-billable
- S88.0 Traumatic amputation at knee levelNon-billable
- S88.01 Complete traumatic amputation at knee levelNon-billable
- S88.011 Complete traumatic amputation at knee level, right lower legNon-billable
- 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 legNon-billable
- 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 legNon-billable
- 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 levelNon-billable
- S88.021 Partial traumatic amputation at knee level, right lower legNon-billable
- 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 legNon-billable
- 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 legNon-billable
- 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 ankleNon-billable
- S88.11 Complete traumatic amputation at level between knee and ankleNon-billable
- S88.111 Complete traumatic amputation at level between knee and ankle, right lower legNon-billable
- 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 legNon-billable
- 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 legNon-billable
- 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
- S88.12 Partial traumatic amputation at level between knee and ankleNon-billable
- S88.121 Partial traumatic amputation at level between knee and ankle, right lower legNon-billable
- S88.121A Partial traumatic amputation at level between knee and ankle, right lower leg, initial encounter
- S88.121D Partial traumatic amputation at level between knee and ankle, right lower leg, subsequent encounter
- S88.121S Partial traumatic amputation at level between knee and ankle, right lower leg, sequela
- S88.122 Partial traumatic amputation at level between knee and ankle, left lower legNon-billable
- S88.122A Partial traumatic amputation at level between knee and ankle, left lower leg, initial encounter
- S88.122D Partial traumatic amputation at level between knee and ankle, left lower leg, subsequent encounter
- S88.122S Partial traumatic amputation at level between knee and ankle, left lower leg, sequela
- S88.129 Partial traumatic amputation at level between knee and ankle, unspecified lower legNon-billable
- S88.129A Partial traumatic amputation at level between knee and ankle, unspecified lower leg, initial encounter
- S88.129D Partial traumatic amputation at level between knee and ankle, unspecified lower leg, subsequent encounter
- S88.129S Partial traumatic amputation at level between knee and ankle, unspecified lower leg, sequela
- S88.9 Traumatic amputation of lower leg, level unspecifiedNon-billable
- S88.91 Complete traumatic amputation of lower leg, level unspecifiedNon-billable
- S88.911 Complete traumatic amputation of right lower leg, level unspecifiedNon-billable
- S88.911A Complete traumatic amputation of right lower leg, level unspecified, initial encounter
- S88.911D Complete traumatic amputation of right lower leg, level unspecified, subsequent encounter
- S88.911S Complete traumatic amputation of right lower leg, level unspecified, sequela
- S88.912 Complete traumatic amputation of left lower leg, level unspecifiedNon-billable
- S88.912A Complete traumatic amputation of left lower leg, level unspecified, initial encounter
- S88.912D Complete traumatic amputation of left lower leg, level unspecified, subsequent encounter
- S88.912S Complete traumatic amputation of left lower leg, level unspecified, sequela
- S88.919 Complete traumatic amputation of unspecified lower leg, level unspecifiedNon-billable
- S88.919A Complete traumatic amputation of unspecified lower leg, level unspecified, initial encounter
- S88.919D Complete traumatic amputation of unspecified lower leg, level unspecified, subsequent encounter
- S88.919S Complete traumatic amputation of unspecified lower leg, level unspecified, sequela
- S88.92 Partial traumatic amputation of lower leg, level unspecifiedNon-billable
- S88.921 Partial traumatic amputation of right lower leg, level unspecifiedNon-billable
- S88.921A Partial traumatic amputation of right lower leg, level unspecified, initial encounter
- S88.921D Partial traumatic amputation of right lower leg, level unspecified, subsequent encounter
- S88.921S Partial traumatic amputation of right lower leg, level unspecified, sequela
- S88.922 Partial traumatic amputation of left lower leg, level unspecifiedNon-billable
- S88.922A Partial traumatic amputation of left lower leg, level unspecified, initial encounter
- S88.922D Partial traumatic amputation of left lower leg, level unspecified, subsequent encounter
- S88.922S Partial traumatic amputation of left lower leg, level unspecified, sequela
- S88.929 Partial traumatic amputation of unspecified lower leg, level unspecifiedNon-billable
- S88.929A Partial traumatic amputation of unspecified lower leg, level unspecified, initial encounter
- S88.929D Partial traumatic amputation of unspecified lower leg, level unspecified, subsequent encounter
- S88.929S Partial traumatic amputation of unspecified lower leg, level unspecified, sequela
About the S88 Code Range
ICD-10 codes in the S88 section are used to identify and specify traumatic amputations of the lower leg, including detailed distinctions by amputation level, completeness, laterality, and encounter type. These codes cover amputations occurring at the knee, between the knee and ankle, and unspecified lower leg levels.
The S88 codes allow precise coding for different scenarios such as complete or partial traumatic amputations at the knee (e.g., S88.011 for a complete amputation of the right lower leg at knee level, also known as "amputated at knee"). They also include codes for amputations between the knee and ankle, often referenced as traumatic transtibiofibular amputations (e.g., S88.111 for complete amputation of the right lower leg at this level). These codes take into account the side of the body (right or left), unspecified or specified levels, and distinguish between initial encounters, subsequent care, or sequela (complications or residual effects). Using these detailed ICD-10 codes ensures accurate medical documentation and billing when dealing with lower leg traumatic amputations documented under terms like "traumatic amputation through knee" or "traumatic transtibiofibular amputation."
Questions About This Page
How many billable codes are in the S88 range?
Of the 82 codes in this range, 54 are billable and valid for claim submission from October 1, 2025 through September 30, 2026. Category header codes group them but cannot be reported on claims.
What does the S88 range classify?
The range classifies traumatic amputation of lower leg. Each code links to its own reference page with billing status, MS-DRG grouping, coding notes, and clinical information.
Related References
Source: CMS FY 2026 ICD-10-CM Tabular List and order file, effective October 1, 2025 through September 30, 2026.
