Sprain of left acromioclavicular joint, subsequent encounter

This code signifies a sprain of the acromioclavicular (AC) joint in the left shoulder, indicating damage to the ligaments connecting the acromion and clavicle. The "subsequent encounter" designation means the patient is receiving follow-up care for an injury that has already been initially treated. This could involve ongoing rehabilitation, monitoring of healing, or management of persistent symptoms.

Use this code when a patient presents for a follow-up visit related to a previously diagnosed left AC joint sprain. This includes appointments for physical therapy, re-evaluation by the treating physician, or management of complications arising from the initial injury. It is appropriate after the initial acute treatment phase has concluded.

• Ensure documentation clearly specifies the left side and that the encounter is not for initial treatment.
• Always pair with an external cause code (V00-Y99) if the cause of the injury is known and documented.
• Consider additional codes for any associated conditions or complications, such as chronic pain or instability.