2026 ICD-10-CM Diagnosis Code S98Traumatic amputation of ankle and foot

ICD-10-CM Codes›S00–T88›S90-S99›S98

ICD-10-CM S98
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

S98 is a non-billable ICD-10-CM category code for traumatic amputation of ankle and foot, so it cannot be submitted on claims. Use a more specific code from this category instead, such as S98.011A, S98.011D, S98.011S, and S98.012A.

Code Identity

ICD-10-CM Code
S98
Billable Status
No — Non-Billable Category
Code Describes
Traumatic amputation of ankle and foot
Short Description
Traumatic amputation of ankle and foot
Same as the full description in the CMS dataset.
Chapter
S90-S99
Injuries to the ankle and foot

Code Classification

ChapterS00–T88Injury, poisoning and certain other consequences of external causes
SectionS90-S99Injuries to the ankle and foot
CategoryS98Traumatic amputation of ankle and foot
This CodeS98Traumatic amputation of ankle and foot

Specific Coding for Traumatic amputation of ankle and footOverview

Non-specific codes like S98 require more characters. Use one of these billable codes instead:

  • S98.0 for Traumatic amputation of foot at ankle level

  • S98.01 for Complete traumatic amputation of foot at ankle level

  • S98.02 for Partial traumatic amputation of foot at ankle level

  • S98.1 for Traumatic amputation of one toe

  • S98.11 for Complete traumatic amputation of great toe

  • S98.12 for Partial traumatic amputation of great toe

  • S98.13 for Complete traumatic amputation of one lesser toe

  • S98.14 for Partial traumatic amputation of one lesser toe

  • S98.2 for Traumatic amputation of two or more lesser toes

  • S98.21 for Complete traumatic amputation of two or more lesser toes

  • S98.22 for Partial traumatic amputation of two or more lesser toes

  • S98.3 for Traumatic amputation of midfoot

  • S98.31 for Complete traumatic amputation of midfoot

  • S98.32 for Partial traumatic amputation of midfoot

  • S98.9 for Traumatic amputation of foot, level unspecified

  • S98.91 for Complete traumatic amputation of foot, level unspecified

  • S98.92 for Partial traumatic amputation of foot, level unspecified

Coding GuidelinesGuidance

The appropriate 7th character is to be added to each code from block Traumatic amputation of ankle and foot (S98). Use the following options for the applicable episode of care:

  • A - initial encounter
  • D - subsequent encounter
  • S - sequela

Source: ICD-10-CM Official Guidelines for Coding and Reporting, FY 2026, published by CMS and the National Center for Health Statistics.

Tabular List NotesGuidance

Coding notes and annotation back-references applicable to this code.

Inclusion Terms

  • An amputation not identified as partial or complete should be coded to complete

7th Character Note

  • The appropriate 7th character is to be added to each code from category S98

7th Character

  • A - initial encounter
  • D - subsequent encounter
  • S - sequela

Patient EducationClinical

Foot Injuries and Disorders

Each of your feet has 26 bones, 33 joints, and more than 100 tendons, muscles, and ligaments. No wonder a lot of things can go wrong. Here are a few common problems:

Read the full article at MedlinePlus

Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2025No changes
FY 2026CurrentCurrent code set, no changesEffective October 1, 2025 through September 30, 2026.

Questions About S98Overview

Is S98 (Traumatic amputation of ankle and foot) a billable code?

No. This is a category header that groups the codes for traumatic amputation of ankle and foot, and headers cannot be submitted on claims. Claims for traumatic amputation of ankle and foot need a more specific code from this category, such as S98.011A, S98.011D, and S98.011S.