Unsp inj extensor musc/fasc/tend thmb at wrs/hnd lv, sequela

This code signifies a long-term complication or late effect stemming from an unspecific injury to the extensor muscles, fascia, or tendons of an unspecified thumb, occurring at the wrist or hand level. It indicates that the acute phase of the original injury has passed, and the patient is now experiencing residual problems.

Use this code when documenting a patient presenting with persistent symptoms (e.g., pain, weakness, limited range of motion, deformity) directly attributable to a past, unspecified extensor injury of the thumb at the wrist or hand. This applies when the original injury is no longer active but its effects continue to impact the patient.

• Always sequence this code after the code for the specific sequela (e.g., pain, scar, contracture).
• Avoid using this code if the specific extensor muscle, fascia, or tendon involved in the original injury is known; instead, use a more specific sequela code.
• Ensure documentation clearly links the current condition to a previous, unspecified extensor thumb injury.