Strain of unsp musc/fasc/tend at wrs/hnd lv, left hand, subs

This code signifies a muscle, fascia, or tendon strain in the left wrist or hand that is not specified further as to the exact muscle or tendon involved. It indicates that the patient is in the healing phase of the injury, receiving follow-up care, or experiencing a complication from the initial injury. The injury is non-traumatic, such as from overuse or repetitive motion.

Use this code for follow-up encounters for a left wrist or hand strain where the specific muscle, fascia, or tendon affected was not documented or is unknown. This applies to situations where the patient is receiving ongoing treatment, such as physical therapy, or being monitored for healing after the initial diagnosis. It is appropriate for subsequent visits after the initial injury has been assessed.

• Ensure the documentation clearly indicates a left-sided wrist or hand strain and that the encounter is not the initial treatment for the injury.
• If the specific muscle, fascia, or tendon is identified, a more precise code from the S66.xxx series should be used.
• Verify the encounter is for follow-up care; for initial encounters, use the 'A' seventh character.