Is S66.303 a billable code?
No. S66.303 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
S66.303: Unspecified injury of extensor muscle, fascia and tendon of left middle finger at wrist and hand level
Header code: not billableValid for dates of service October 1, 2026 to September 30, 2027
S66.303 groups related diagnoses under unspecified injury of extensor muscle, fascia and tendon of left middle finger at wrist and hand level. It cannot be used on a claim by itself. Choose the billable code below that matches the patient's record.
Billable codes under S66.303
- S66.303AUnspecified injury of extensor muscle, fascia and tendon of left middle finger at wrist and hand level, initial encounter
- S66.303DUnspecified injury of extensor muscle, fascia and tendon of left middle finger at wrist and hand level, subsequent encounter
- S66.303SUnspecified injury of extensor muscle, fascia and tendon of left middle finger at wrist and hand level, sequela
Other codes in S66.30 Unspecified injury of extensor muscle, fascia and tendon of other and unspecified finger at wrist and hand level
- S66.300Unspecified injury of extensor muscle, fascia and tendon of right index finger at wrist and hand levelheader
- S66.301Unspecified injury of extensor muscle, fascia and tendon of left index finger at wrist and hand levelheader
- S66.302Unspecified injury of extensor muscle, fascia and tendon of right middle finger at wrist and hand levelheader
- S66.304Unspecified injury of extensor muscle, fascia and tendon of right ring finger at wrist and hand levelheader
- S66.305Unspecified injury of extensor muscle, fascia and tendon of left ring finger at wrist and hand levelheader
- S66.306Unspecified injury of extensor muscle, fascia and tendon of right little finger at wrist and hand levelheader
- S66.307Unspecified injury of extensor muscle, fascia and tendon of left little finger at wrist and hand levelheader
- S66.308Unspecified injury of extensor muscle, fascia and tendon of other finger at wrist and hand levelheader
- S66.309Unspecified injury of extensor muscle, fascia and tendon of unspecified finger at wrist and hand levelheader
S66.303 questions
What does S66.303 mean?
S66.303 is the ICD-10-CM code for Unspecified injury of extensor muscle, fascia and tendon of left middle finger at wrist and hand level. 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.