Unsp inj extensor musc/fasc/tend r thm at wrs/hnd lv, init

This code signifies an unspecified injury to the extensor muscle, fascia, or tendon of the right thumb. The injury is located specifically at the wrist or hand level, indicating damage to the structures responsible for extending the thumb.

This code is appropriate for initial encounters when a patient presents with an acute injury to the extensor mechanism of the right thumb, and the specific nature of the injury (e.g., strain, sprain, tear) has not yet been determined or documented. It is used when the physician notes an injury but does not specify the exact type of damage to the muscle, fascia, or tendon.

• Ensure the documentation clearly indicates the right thumb and the injury location at the wrist/hand level.
• Only use this code for the initial encounter of the injury; subsequent encounters will require a different seventh character.
• Avoid using this code if a more specific diagnosis, such as a sprain or tear, is documented.