S99 Other and unspecified injuries of ankle and foot

⚠ Non-Billable ICD-10-CM 2026
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The ICD-10-CM code for Other and unspecified injuries of ankle and foot is S99 (FY2026). It is a non-billable category code — select a more specific code below for claims.

Classification

Section
S90-S99: Injuries to the ankle and foot (S90-S99)
Category S99
94 codes (66 billable)
FY2026 Status
Stable since FY2024

Official Coding Guidelines

Sequence blood vessel/nerve injury first (fragment)

injury is to the blood vessels or nerves, that injury should be sequenced first.

— ICD-10-CM Official Guidelines for Coding and Reporting, FY2026, Section I.C.19.b.2
Do not assign injury codes for iatrogenic injuries; code complication

3) Iatrogenic injuries Injury codes from Chapter 19 should not be assigned for injuries that occur during, or as a result of, a medical intervention. Assign the appropriate complication code(s).

— ICD-10-CM Official Guidelines for Coding and Reporting, FY2026, Section I.C.19.b.3

Source: CMS — ICD-10-CM Official Guidelines for Coding and Reporting, FY2026

References

Cite This Page

Reference S99 with the canonical source and edition:

S99 — Other and unspecified injuries of ankle and foot. ICD-10 Coding Pro (ICD-10-CM FY2026). https://icd10codingpro.com/codes/S99

Canonical URL: https://icd10codingpro.com/codes/S99

Related Codes

All Codes in S99

Every most-specific code under S99 Other and unspecified injuries of ankle and foot (66 codes):

Show the complete S99 code list
S99.001 Unspecified physeal fracture of right calcaneus S99.002 Unspecified physeal fracture of left calcaneus S99.009 Unspecified physeal fracture of unspecified calcaneus S99.011 Salter-Harris Type I physeal fracture of right calcaneus S99.012 Salter-Harris Type I physeal fracture of left calcaneus S99.019 Salter-Harris Type I physeal fracture of unspecified calcaneus S99.021 Salter-Harris Type II physeal fracture of right calcaneus S99.022 Salter-Harris Type II physeal fracture of left calcaneus S99.029 Salter-Harris Type II physeal fracture of unspecified calcaneus S99.031 Salter-Harris Type III physeal fracture of right calcaneus S99.032 Salter-Harris Type III physeal fracture of left calcaneus S99.039 Salter-Harris Type III physeal fracture of unspecified calcaneus S99.041 Salter-Harris Type IV physeal fracture of right calcaneus S99.042 Salter-Harris Type IV physeal fracture of left calcaneus S99.049 Salter-Harris Type IV physeal fracture of unspecified calcaneus S99.091 Other physeal fracture of right calcaneus S99.092 Other physeal fracture of left calcaneus S99.099 Other physeal fracture of unspecified calcaneus S99.101 Unspecified physeal fracture of right metatarsal S99.102 Unspecified physeal fracture of left metatarsal S99.109 Unspecified physeal fracture of unspecified metatarsal S99.111 Salter-Harris Type I physeal fracture of right metatarsal S99.112 Salter-Harris Type I physeal fracture of left metatarsal S99.119 Salter-Harris Type I physeal fracture of unspecified metatarsal S99.121 Salter-Harris Type II physeal fracture of right metatarsal S99.122 Salter-Harris Type II physeal fracture of left metatarsal S99.129 Salter-Harris Type II physeal fracture of unspecified metatarsal S99.131 Salter-Harris Type III physeal fracture of right metatarsal S99.132 Salter-Harris Type III physeal fracture of left metatarsal S99.139 Salter-Harris Type III physeal fracture of unspecified metatarsal S99.141 Salter-Harris Type IV physeal fracture of right metatarsal S99.142 Salter-Harris Type IV physeal fracture of left metatarsal S99.149 Salter-Harris Type IV physeal fracture of unspecified metatarsal S99.191 Other physeal fracture of right metatarsal S99.192 Other physeal fracture of left metatarsal S99.199 Other physeal fracture of unspecified metatarsal S99.201 Unspecified physeal fracture of phalanx of right toe S99.202 Unspecified physeal fracture of phalanx of left toe S99.209 Unspecified physeal fracture of phalanx of unspecified toe S99.211 Salter-Harris Type I physeal fracture of phalanx of right toe S99.212 Salter-Harris Type I physeal fracture of phalanx of left toe S99.219 Salter-Harris Type I physeal fracture of phalanx of unspecified toe S99.221 Salter-Harris Type II physeal fracture of phalanx of right toe S99.222 Salter-Harris Type II physeal fracture of phalanx of left toe S99.229 Salter-Harris Type II physeal fracture of phalanx of unspecified toe S99.231 Salter-Harris Type III physeal fracture of phalanx of right toe S99.232 Salter-Harris Type III physeal fracture of phalanx of left toe S99.239 Salter-Harris Type III physeal fracture of phalanx of unspecified toe S99.241 Salter-Harris Type IV physeal fracture of phalanx of right toe S99.242 Salter-Harris Type IV physeal fracture of phalanx of left toe S99.249 Salter-Harris Type IV physeal fracture of phalanx of unspecified toe S99.291 Other physeal fracture of phalanx of right toe S99.292 Other physeal fracture of phalanx of left toe S99.299 Other physeal fracture of phalanx of unspecified toe S99.811 Other specified injuries of right ankle S99.812 Other specified injuries of left ankle S99.819 Other specified injuries of unspecified ankle S99.821 Other specified injuries of right foot S99.822 Other specified injuries of left foot S99.829 Other specified injuries of unspecified foot S99.911 Unspecified injury of right ankle S99.912 Unspecified injury of left ankle S99.919 Unspecified injury of unspecified ankle S99.921 Unspecified injury of right foot S99.922 Unspecified injury of left foot S99.929 Unspecified injury of unspecified foot
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Reviewed by Prajwal Shrestha, CPC, CRC
Certified Professional Coder (CPC) and Certified Risk Adjustment Coder (CRC) · AAPC Member ID 01997614 · About · Editorial policy · Content last reviewed: 2025-10-01

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