S91 Open wound of ankle, foot and toes

⚠ Non-Billable ICD-10-CM 2026
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The ICD-10-CM code for Open wound of ankle, foot and toes is S91 (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 S91
149 codes (120 billable)
FY2026 Status
Stable since FY2024
Excludes1
Not coded here. These conditions should NOT be coded together with S91.
  • open fracture of ankle, foot and toes (S92.-with 7th character B)
  • traumatic amputation of ankle and foot (S98.-)
Code Also
  • any associated wound infection

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

Related Codes

More Specific Codes

S91.0 Open wound of ankle S91.00 Unspecified open wound of ankle S91.001 Unspecified open wound, right ankle S91.002 Unspecified open wound, left ankle S91.009 Unspecified open wound, unspecified ankle S91.01 Laceration without foreign body of ankle S91.011 Laceration without foreign body, right ankle S91.012 Laceration without foreign body, left ankle S91.019 Laceration without foreign body, unspecified ankle S91.02 Laceration with foreign body of ankle S91.021 Laceration with foreign body, right ankle S91.022 Laceration with foreign body, left ankle S91.029 Laceration with foreign body, unspecified ankle S91.03 Puncture wound without foreign body of ankle S91.031 Puncture wound without foreign body, right ankle S91.032 Puncture wound without foreign body, left ankle S91.039 Puncture wound without foreign body, unspecified ankle S91.04 Puncture wound with foreign body of ankle S91.041 Puncture wound with foreign body, right ankle S91.042 Puncture wound with foreign body, left ankle S91.049 Puncture wound with foreign body, unspecified ankle S91.05 Open bite of ankle S91.051 Open bite, right ankle S91.052 Open bite, left ankle S91.059 Open bite, unspecified ankle S91.1 Open wound of toe without damage to nail S91.10 Unspecified open wound of toe without damage to nail S91.101 Unspecified open wound of right great toe without damage to nail S91.102 Unspecified open wound of left great toe without damage to nail S91.103 Unspecified open wound of unspecified great toe without damage to nail

Related Codes in S91

S91.0 Open wound of ankle S91.00 Unspecified open wound of ankle S91.001 Unspecified open wound, right ankle S91.002 Unspecified open wound, left ankle S91.009 Unspecified open wound, unspecified ankle S91.01 Laceration without foreign body of ankle S91.011 Laceration without foreign body, right ankle S91.012 Laceration without foreign body, left ankle S91.019 Laceration without foreign body, unspecified ankle S91.02 Laceration with foreign body of ankle S91.021 Laceration with foreign body, right ankle S91.022 Laceration with foreign body, left ankle S91.029 Laceration with foreign body, unspecified ankle S91.03 Puncture wound without foreign body of ankle S91.031 Puncture wound without foreign body, right ankle S91.032 Puncture wound without foreign body, left ankle S91.039 Puncture wound without foreign body, unspecified ankle S91.04 Puncture wound with foreign body of ankle S91.041 Puncture wound with foreign body, right ankle S91.042 Puncture wound with foreign body, left ankle
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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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