Posterior subluxation of unsp sternoclavicular joint, init

This code signifies a partial dislocation of the sternoclavicular (SC) joint, where the clavicle has shifted backward relative to the sternum. It indicates that the specific side (left or right) of the sternoclavicular joint involved is not documented. This injury often results from direct trauma or a fall.

This code is appropriate for the initial encounter when a patient presents with a posterior subluxation of the sternoclavicular joint, and the medical record does not specify whether it's the left or right side. This typically occurs after an acute injury, such as a motor vehicle accident or a direct blow to the shoulder.

• Ensure "unspecified" is clearly documented if the laterality is unknown.
• Verify this is the initial encounter for the injury; subsequent encounters will use different seventh characters.
• Distinguish between subluxation (partial dislocation) and dislocation (complete separation) as they have different codes.