2027 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 2027 ICD-10-CM dataset · Effective Oct 1, 2026 – Sep 30, 2027

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 2027, published by CMS and the National Center for Health Statistics.

Instructional NotesGuidance

Instructions from the official ICD-10-CM Tabular List that apply to S98: its own notes plus those printed at block S90-S99 and Chapter 19. A note printed at a category, block or chapter applies to every code under it.

Applicable To

Conditions this code is used for: synonyms of the title or, for "other specified" codes, the conditions assigned to it. The list is not exhaustive.

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

Excludes2

Not included here: the excluded condition is not part of this code, but a patient may have both, so both codes may be reported.

From Block S90-S99 Injuries to the ankle and foot applies to 3,324 codes
  • burns and corrosions (T20-T32)
  • fracture of ankle and malleolus (S82.-)
  • frostbite (T33-T34)
  • insect bite or sting, venomous (T63.4)
From Chapter 19 (S00-T88) Injury, poisoning and certain other consequences of external causes applies to 41,187 codes

Use Additional Code

Add a second code, after this one, to fully describe the condition.

From Chapter 19 (S00-T88) Injury, poisoning and certain other consequences of external causes applies to 41,187 codes
  • code to identify any retained foreign body, if applicable (Z18.-)

Notes

General instructions on how these codes are used.

From Chapter 19 (S00-T88) Injury, poisoning and certain other consequences of external causes applies to 41,187 codes
  • Use secondary code(s) from Chapter 20, External causes of morbidity, to indicate cause of injury. Codes within the T section that include the external cause do not require an additional external cause code
  • The chapter uses the S-section for coding different types of injuries related to single body regions and the T-section to cover injuries to unspecified body regions as well as poisoning and certain other consequences of external causes.

7th Character

Every code in the category takes a 7th character from the listed values, with the placeholder X filling any empty positions before it.

  • The appropriate 7th character is to be added to each code from category S98
Values for category S98 Encounter: Initial, Subsequent, Sequela
  • Ainitial encounter
  • Dsubsequent encounter
  • Ssequela

Source: CMS ICD-10-CM Tabular List. How to read instructional notes.

Referenced in Other NotesGuidance

Instructional notes printed at other codes that name S98, its category, or a range that includes it.

Excludes1 2

These codes carry an Excludes1 note naming S98: they are not reported together with it, unless the two conditions are unrelated.

  • S88 Traumatic amputation of lower leg
    traumatic amputation of ankle and foot (S98.-)
  • S91 Open wound of ankle, foot and toes
    traumatic amputation of ankle and foot (S98.-)

Excludes2 1

These codes carry an Excludes2 note naming S98: its condition is not part of those codes, and both may be reported when the patient has both.

  • S92 Fracture of foot and toe, except ankle
    traumatic amputation of ankle and foot (S98.-)

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 2017–2026No changes
FY 2027CurrentCurrent code set, no changesEffective October 1, 2026 through September 30, 2027.

Questions About S98Overview

What is the ICD-10 code for traumatic amputation of ankle and foot?

S98 is the ICD-10-CM category for traumatic amputation of ankle and foot, but it is a non-billable header: claims need a more specific code from this category, listed on this page.

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.