Inj extn/abdr musc/fasc/tend of thmb at forearm level, subs

This code signifies an injury to the extensor or abductor muscles, fascia, or tendons of an unspecified thumb, specifically at the forearm level. This injury is not a sprain, strain, or laceration, but rather another type of damage to these tissues. The "D" suffix indicates that this is a subsequent encounter for care of the injury.

This code is appropriate for follow-up visits where a patient is receiving ongoing treatment for a previously diagnosed injury to the extensor or abductor muscles/tendons of the thumb at the forearm level. This includes scenarios such as physical therapy, wound care, or medication management during the healing phase. It should be used after the initial active treatment has concluded.

• Ensure the documentation specifies "other injury" rather than a sprain, strain, or laceration.
• Verify the injury location is at the forearm level and involves the thumb's extensor or abductor structures.
• The "D" suffix mandates that this is not the initial encounter for the injury.