ICD-10-CM FY2027 diagnosis code

S66.991D: Other injury of unspecified muscle, fascia and tendon at wrist and hand level, right hand, subsequent encounter

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

S66.991D is a billable ICD-10-CM diagnosis code for other injury of unspecified muscle, fascia and tendon at wrist and hand level, right hand, subsequent encounter. It is specific enough to use on an insurance claim, a superbill or a Good Faith Estimate.

S66.991D questions

Is S66.991D a billable code?

Yes. S66.991D 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 S66.991D mean?

S66.991D is the ICD-10-CM code for Other injury of unspecified muscle, fascia and tendon at wrist and hand level, right hand, subsequent 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.