Lacerat long flexor musc/fasc/tend thmb at wrs/hnd lv, subs

This code signifies a tear or cut in the long flexor muscle, its surrounding fascia, and the associated tendon within an unspecified thumb, occurring at the wrist or hand level. This specific code is used for encounters following the initial treatment of such an injury, indicating ongoing care or follow-up.

Apply this code for subsequent visits related to a laceration of the long flexor structures of the thumb, such as during wound care, physical therapy, or follow-up appointments after surgical repair. It is appropriate when the patient is receiving active treatment for the injury beyond the initial encounter.

• Ensure documentation clearly specifies "unspecified thumb" if laterality is not documented.
• Confirm the encounter is for subsequent care, not the initial treatment of the injury.
• Verify the injury involves the long flexor muscle, fascia, and tendon, not just one component.