S99 ICD-10-CM Code: Other and unspecified injuries of ankle and foot
A clear reference for the official code description, hierarchy, and related coding information from the FY 2027 U.S. release.
Code definition
Official description
S99Other and unspecified injuries of ankle and foot
ICD-10-CM diagnosis code · United States clinical modification
Classification
Where S99 sits
- 1
Chapter 19
Injury, poisoning and certain other consequences of external causes (S00-T88)
- 2
Section
Injuries to the ankle and foot (S90-S99)
- 3
Category S99
Other and unspecified injuries of ankle and foot
- 4
Code S99
Other and unspecified injuries of ankle and foot
More specific choices
Codes under S99
S99 is a non-billable category. Choose the child code that best matches the documented diagnosis.
Documentation details
Notes for this code
Inclusion terms
No inclusion terms are listed for S99.
Code first
No “code first” instruction is listed for S99.
Use additional code
No “use additional code” instruction is listed for S99.
Excludes1
Conditions that should not be reported together with this code.
No Excludes1 note is listed for S99.
Excludes2
Conditions not included here that may be reported separately when present.
No Excludes2 note is listed for S99.
Transparency
Source and release
This reference is generated from Vero’s ICD-10-CM description, hierarchy, and code-note dataset. The visible content and structured data share that source.
Review the CDC/NCHS ICD-10-CM sourceCode-specific guidance
Frequently asked questions
What does ICD-10-CM code S99 mean?
S99 is the FY 2027 U.S. ICD-10-CM code for “Other and unspecified injuries of ankle and foot.”
Is S99 a billable or specific ICD-10-CM code?
No. S99 has more specific child codes in the FY 2027 reference data. Select the code that matches the documentation and confirm the active code set and payer requirements.
Where is S99 located in ICD-10-CM?
S99 is listed in Chapter 19, Injury, poisoning and certain other consequences of external causes (S00-T88), within Injuries to the ankle and foot (S90-S99) (S90–S99), under category S99, Other and unspecified injuries of ankle and foot.
What coding notes are listed for S99?
No inclusion terms are listed for S99 in this reference record. No code-first instruction is listed. No Excludes1 note is listed. No Excludes2 note is listed.
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