Posterior subluxation of unspecified humerus, init encntr

This diagnosis code indicates an incomplete posterior dislocation of the shoulder joint, where the head of the humerus has partially slipped out of the glenoid fossa but remains in contact with it. "Unspecified humerus" means the laterality (left or right) of the affected shoulder is not documented. This is the initial visit for this injury.

Use this code for a patient presenting with a newly diagnosed posterior shoulder subluxation where the physician's documentation does not specify whether it's the left or right shoulder. This code is appropriate for the initial treatment or evaluation of the injury.

• Ensure documentation clearly states "posterior subluxation" and not a full dislocation.
• Only use "unspecified" when laterality is genuinely absent from the medical record. Query the provider if laterality is missing.
• The "A" at the end signifies an initial encounter for this injury, meaning the patient is receiving active treatment.