Strain of extensor musc/fasc/tend r thm at wrs/hnd lv, subs

This code signifies a non-traumatic injury to the extensor muscles, their surrounding fascia, or tendons located in the right thumb, specifically at the wrist or hand level, that is being treated in a follow-up encounter. This injury involves overstretching or tearing of these tissues, resulting in pain and impaired thumb movement.

This code is appropriate for documenting subsequent visits for a patient who is receiving ongoing care for a previously diagnosed strain of the right thumb extensor mechanism. This includes follow-up appointments for physical therapy, re-evaluation of symptoms, or monitoring of healing progress after the initial injury.

• Ensure the documentation clearly specifies the right thumb and the extensor mechanism.
• Verify that this is not the initial encounter for the injury; otherwise, an initial encounter code would be more appropriate.
• Confirm the injury is a strain, not a sprain, rupture, or other type of injury.