ICD-10-CM FY2027 diagnosis code

S66.109S: Unspecified injury of flexor muscle, fascia and tendon of unspecified finger at wrist and hand level, sequela

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

S66.109S is a billable ICD-10-CM diagnosis code for unspecified injury of flexor muscle, fascia and tendon of unspecified finger at wrist and hand level, sequela. It is specific enough to use on an insurance claim, a superbill or a Good Faith Estimate.

S66.109S questions

Is S66.109S a billable code?

Yes. S66.109S 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 S66.109S mean?

S66.109S is the ICD-10-CM code for Unspecified injury of flexor muscle, fascia and tendon of unspecified finger at wrist and hand level, sequela. 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.