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

This code signifies a long-term or residual effect from a previous injury to the extensor or abductor muscles, fascia, or tendons of an unspecified thumb, specifically at the forearm level. It indicates that the initial acute injury has resolved, but the patient continues to experience symptoms or functional limitations directly attributable to that past strain.

Use this code when documenting a patient presenting with chronic pain, weakness, limited range of motion, or other persistent issues in the thumb's extensor/abductor mechanism at the forearm, and the medical record clearly links these symptoms to a prior strain. This code is appropriate for follow-up encounters where the sequelae of the original injury are being managed.

• Ensure the medical record explicitly states the condition is a "sequela" or "late effect" of a previous strain.
• Verify that the injury location is specifically at the "forearm level" and involves the extensor or abductor muscles/tendons of the thumb.
• Avoid using this code for acute injuries; it is strictly for residual conditions after the acute phase has passed.