Strain extn musc/fasc/tend l idx fngr at wrs/hnd lv, subs

This code signifies a non-traumatic overstretching or tearing of the extensor muscles, fascia, or tendons specifically affecting the left index finger, located at the wrist or hand level. This injury results in pain, swelling, and impaired movement of the affected digit.

This code is appropriate for follow-up encounters for a patient who previously sustained an extensor strain of their left index finger. This includes visits for continued treatment, rehabilitation, or monitoring of healing after the initial injury.

• Ensure the documentation clearly specifies the left index finger and the injury location at the wrist or hand level.
• Verify that the encounter is for subsequent care, not the initial injury.
• Confirm the injury is a strain, not a sprain, laceration, or fracture.