ICD-10-CM FY2027 diagnosis code

S86.399A: Other injury of muscle(s) and tendon(s) of peroneal muscle group at lower leg level, unspecified leg, initial encounter

Billable codeValid for dates of service October 1, 2026 to September 30, 2027

S86.399A is a billable ICD-10-CM diagnosis code for other injury of muscle(s) and tendon(s) of peroneal muscle group at lower leg level, unspecified leg, initial encounter. It is specific enough to use on an insurance claim, a superbill or a Good Faith Estimate.

S86.399A questions

Is S86.399A a billable code?

Yes. S86.399A is a billable ICD-10-CM code and can be used on claims and superbills for dates of service from October 1, 2026 to September 30, 2027.

What does S86.399A mean?

S86.399A is the ICD-10-CM code for Other injury of muscle(s) and tendon(s) of peroneal muscle group at lower leg level, unspecified leg, initial encounter. 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.