Posterior subluxation of left humerus, subsequent encounter

This code indicates a partial posterior dislocation of the left upper arm bone from the shoulder joint, which has occurred previously and is now being treated or evaluated. The humeral head is displaced backward relative to the glenoid cavity, but still maintains some contact.

Use this code for follow-up visits, rehabilitation encounters, or subsequent evaluations of a previously diagnosed posterior subluxation of the left humerus. This includes situations where the patient is receiving ongoing care, such as physical therapy, after the initial treatment of the injury.

• Ensure documentation specifies "left" humerus and "posterior" subluxation.
• Confirm the encounter is not the initial treatment for the injury; look for terms like "follow-up," "rehabilitation," or "healing."
• Verify that the documentation clearly states subluxation (partial dislocation) rather than a complete dislocation.