ICD-10-CM FY2027 diagnosis code

S99: Other and unspecified injuries of ankle and foot

Header code: not billableValid for dates of service October 1, 2026 to September 30, 2027

S99 groups related diagnoses under other and unspecified injuries of ankle and foot. It cannot be used on a claim by itself. Choose the billable code below that matches the patient's record.

Billable codes under S99

S99 questions

Is S99 a billable code?

No. S99 is a header code that groups 400 more specific codes. Use one of the billable codes listed on this page instead.

What does S99 mean?

S99 is the ICD-10-CM code for Other and unspecified injuries of ankle and foot. It is in chapter 19, Injury, poisoning and certain other consequences of external causes (S00-T88).

Code titles come from the official ICD-10-CM files published by the CDC National Center for Health Statistics. Always check payer rules and the clinical record before billing.