Injury of median nerve at wrs/hnd lv of unsp arm, sequela

This code signifies a long-term or residual effect resulting from a past injury to the median nerve in the wrist or hand of an unspecified arm. These sequelae can manifest as persistent pain, numbness, tingling, weakness, or functional impairment in the areas innervated by the median nerve, such as the thumb, index, middle, and radial half of the ring finger.

This code is appropriate for documenting chronic conditions directly attributable to a previous median nerve injury at the wrist or hand level, after the acute phase of the original injury has passed. Examples include ongoing carpal tunnel syndrome symptoms post-trauma, or persistent sensory deficits following a laceration that damaged the median nerve. It should be used when the original injury is no longer being treated.

• Always assign a secondary code to describe the specific nature of the sequela (e.g., G56.01 for carpal tunnel syndrome, G89.29 for chronic pain).
• Ensure documentation clearly links the current condition to a past median nerve injury at the specified anatomical level.
• Verify that the laterality (unspecified arm) is consistent with the clinical record. If laterality is known, a more specific code should be used.