S66.009
Billable codeUnspecified injury of long flexor muscle, fascia and tendon of unspecified thumb at wrist and hand level
The ICD-10 code for unspecified injury of long flexor muscle, fascia and tendon of unspecified thumb at wrist and hand level is S66.009.
Documentation support
General coding-documentation guidance — not a substitute for payer-specific requirements or professional coding judgment.
- •Laterality-specific codes exist for this condition — confirm the affected side is documented.
- •As a general rule, code to the highest level of specificity supported by the documentation in the medical record.
Related codes in this category
- S66.001Unspecified injury of long flexor muscle, fascia and tendon of right thumb at wrist and hand level
- S66.002Unspecified injury of long flexor muscle, fascia and tendon of left thumb at wrist and hand level
- S66.009Unspecified injury of long flexor muscle, fascia and tendon of unspecified thumb at wrist and hand level