Lacerat extn/abdr musc/fasc/tend of r thm at forarm lv, init

This code signifies a tear or cut affecting the muscles, connective tissue, or tendons responsible for extending or moving the thumb away from the hand. The injury is specifically located in the right thumb region, but the damage extends proximally to the forearm level.

This code is appropriate for initial treatment of acute injuries such as those sustained from a deep cut, a crushing injury, or a severe avulsion that severs the extensor or abductor structures of the right thumb, with the injury site extending into the forearm. It would be used when the patient presents for the first time for this specific injury.

• Ensure documentation specifies "right thumb" and "forearm level" for accurate code assignment.
• Confirm the injury involves extensor or abductor structures; other muscle groups will require different codes.
• The "A" in the seventh character indicates an initial encounter for active treatment of the injury.