Is S66.991 a billable code?
No. S66.991 is a header code that groups 3 more specific codes. Use one of the billable codes listed on this page instead.
ICD-10-CM FY2027 diagnosis code
S66.991: Other injury of unspecified muscle, fascia and tendon at wrist and hand level, right hand
Header code: not billableValid for dates of service October 1, 2026 to September 30, 2027
S66.991 groups related diagnoses under other injury of unspecified muscle, fascia and tendon at wrist and hand level, right hand. It cannot be used on a claim by itself. Choose the billable code below that matches the patient's record.
Billable codes under S66.991
- S66.991AOther injury of unspecified muscle, fascia and tendon at wrist and hand level, right hand, initial encounter
- S66.991DOther injury of unspecified muscle, fascia and tendon at wrist and hand level, right hand, subsequent encounter
- S66.991SOther injury of unspecified muscle, fascia and tendon at wrist and hand level, right hand, sequela
Other codes in S66.99 Other injury of unspecified muscle, fascia and tendon at wrist and hand level
S66.991 questions
What does S66.991 mean?
S66.991 is the ICD-10-CM code for Other injury of unspecified muscle, fascia and tendon at wrist and hand level, right hand. 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.