Is S66.899 a billable code?
No. S66.899 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
S66.899: Other injury of other specified muscles, fascia and tendons at wrist and hand level, unspecified hand
Header code: not billableValid for dates of service October 1, 2026 to September 30, 2027
S66.899 groups related diagnoses under other injury of other specified muscles, fascia and tendons at wrist and hand level, unspecified hand. It cannot be used on a claim by itself. Choose the billable code below that matches the patient's record.
Billable codes under S66.899
- S66.899AOther injury of other specified muscles, fascia and tendons at wrist and hand level, unspecified hand, initial encounter
- S66.899DOther injury of other specified muscles, fascia and tendons at wrist and hand level, unspecified hand, subsequent encounter
- S66.899SOther injury of other specified muscles, fascia and tendons at wrist and hand level, unspecified hand, sequela
Other codes in S66.89 Other injury of other specified muscles, fascia and tendons at wrist and hand level
S66.899 questions
What does S66.899 mean?
S66.899 is the ICD-10-CM code for Other injury of other specified muscles, fascia and tendons at wrist and hand level, unspecified 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.