ICD-10-CM FY2027 diagnosis code

S66.091A: Other specified injury of long flexor muscle, fascia and tendon of right thumb at wrist and hand level, initial encounter

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

S66.091A is a billable ICD-10-CM diagnosis code for other specified injury of long flexor muscle, fascia and tendon of right thumb at wrist and hand level, initial encounter. It is specific enough to use on an insurance claim, a superbill or a Good Faith Estimate.

S66.091A questions

Is S66.091A a billable code?

Yes. S66.091A 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 S66.091A mean?

S66.091A is the ICD-10-CM code for Other specified injury of long flexor muscle, fascia and tendon of right thumb at wrist and hand level, 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.