Pathological dislocation of left shoulder, NEC

This code signifies a non-traumatic displacement of the humeral head from the glenoid fossa in the left shoulder joint. This dislocation occurs due to underlying disease processes, such as inflammatory arthropathy, neuromuscular conditions, or connective tissue disorders, rather than an external force.

Apply this code when documentation clearly indicates a spontaneous or atraumatic dislocation of the left shoulder. Supporting documentation should specify the absence of trauma and often points to an underlying systemic or localized disease contributing to joint instability.

• Ensure documentation explicitly states "pathological" or "atraumatic" dislocation to differentiate from traumatic dislocations (S43.0-).
• Always sequence an underlying disease code, if known, before this code to fully explain the etiology of the pathological dislocation.
• Do not use this code for recurrent dislocations unless the recurrence is also pathological; otherwise, consider codes from M24.4-.