MCMedicalCodingSoftware
S98.029A

S98.029A: Partial traumatic amputation of unspecified foot at ankle level, initial encounter

Billable / specific codeICD-10-CMunspecified

S98.029A is a billable, specific ICD-10-CM code for partial traumatic amputation of unspecified foot at ankle level, initial encounter. It is valid for submission on a claim.

Check S98.029A with the rest of the claim: free scrubber

7th character "A": initial encounter

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

A
initial encounter
D
subsequent encounter
S
sequela

Other codes that can never be billed with S98.029A

Their own Excludes1 notes name this code, so the conflict is not listed above.

  • S88Traumatic amputation of lower leg
  • S91Open wound of ankle, foot and toes

Risk adjustment

S98.029A risk-adjusts. Under the CMS-HCC V28 model it maps to this category:

  • HCC 405 Traumatic Amputations and Complications0.598 RAF

Coefficient shown for the Community Non-dual Aged segment. A higher HCC in the same hierarchy will suppress this one, so capturing it does not always add score. Look up the whole chart to see which of its HCCs the hierarchy would zero.

Medicare coverage

S98.029A is named in 1 Medicare coverage policy: 1 listing it as supporting medical necessity. Which one applies depends on your Medicare contractor.

  • A52481Orthopedic Footwear - Policy Article

Code history

Unchanged in every release from FY2024 to FY2027.

Other codes under S98.029

ICD-10-CMFY2027· effective October 1, 2026

Loaded directly from the CMS/NCHS ICD-10-CM public-domain release: see data sources and our editorial policy. If this page disagrees with the CMS tabular list, this page is wrong. Reference information for professional coders; not medical or billing advice.