Unsp inj extn/abdr musc/fasc/tend of thmb at forarm lv, sqla

This code signifies an unspecified, long-term complication or late effect resulting from an injury to the extensor or abductor muscles, fascia, or tendons of an unspecified thumb, with the injury occurring at the forearm level. The specific nature of the injury itself is not documented, only its lasting impact.

Utilize this code when documentation indicates a sequela (e.g., chronic pain, stiffness, weakness, limited range of motion) stemming from a past, unspecified injury to the thumb's extensor or abductor structures at the forearm. This is appropriate when the original acute injury is no longer being treated, but its residual effects are.

• Always sequence a sequela code after the code for the specific sequela condition being treated (e.g., chronic pain, scar contracture).
• Ensure the documentation clearly states the injury occurred at the forearm level and involves the extensor or abductor structures of the thumb.
• Avoid this code if the specific type of muscle/tendon injury (e.g., laceration, strain) is known; instead, use a more specific sequela code.