S91.0
⚠ Non-billable
Open wound of ankle
ICD-10-CM · FY2026 · Injury, Poisoning and Certain Other Consequences of External Causes
Code
S91.0
System
ICD-10-CM
Billable
No — use specific code
Effective
FY2026
Chapter
Injury, Poisoning and Certain Other Consequences of External Causes
Source
CMS / CDC NCHS
⚠ Verify before billing. Confirm against the current CMS/NCHS ICD-10-CM files and your payer's rules before claims submission.
Frequently asked questions
What is ICD-10 code S91.0?
ICD-10-CM code S91.0 represents Open wound of ankle. It is a non-billable header code requiring a more specific subcategory in the Injury, Poisoning and Certain Other Consequences of External Causes chapter, effective October 1, 2025 – September 30, 2026.
Is S91.0 billable?
No. S91.0 is a non-billable header. Select a more specific subcategory for claims submission.
What chapter is S91.0 in?
S91.0 belongs to the Injury, Poisoning and Certain Other Consequences of External Causes chapter (S00–T88) of ICD-10-CM.
Related codes in the S91 category
S91
Open wound of ankle, foot and toes
Non-billable
S91.1
Open wound of toe without damage to nail
Non-billable
S91.2
Open wound of toe with damage to nail
Non-billable
S91.3
Open wound of foot
Non-billable
S91.00
Unspecified open wound of ankle
Non-billable
S91.01
Laceration without foreign body of ankle
Non-billable
S91.02
Laceration with foreign body of ankle
Non-billable
S91.03
Puncture wound without foreign body of ankle
Non-billable
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