Sprain of unspecified sternoclavicular joint, init encntr

This code signifies a ligamentous injury to the sternoclavicular (SC) joint, where the clavicle meets the sternum, without specifying the exact ligaments involved or the laterality (left or right). It indicates a stretching or tearing of these supporting structures, resulting in pain, swelling, and limited movement in the shoulder and upper chest region.

Apply this code when documentation confirms a sprain of the sternoclavicular joint, but the medical record does not specify whether it's the left or right joint. This is appropriate for the initial evaluation and treatment of such an injury, often following trauma like a fall or direct impact to the shoulder.

• Only use this code when laterality of the SC joint sprain is truly unspecified in the medical record.
• Ensure the encounter is documented as the "initial encounter" for this specific injury.
• If laterality is documented (left or right), select a more specific code from the S43.61- or S43.62- series.