Osteitis deformans of left shoulder

This code indicates Paget's disease affecting the left shoulder. It describes a chronic bone disorder characterized by abnormal bone remodeling, leading to enlarged and weakened bones in this specific anatomical location. The condition can cause pain, deformity, and fractures.

Use this code when documentation explicitly states a diagnosis of Paget's disease (osteitis deformans) localized to the left shoulder. This diagnosis is typically supported by imaging studies (e.g., X-rays, bone scans) showing characteristic bone changes, along with clinical findings such as pain or swelling in the left shoulder.

• Ensure laterality is clearly documented as "left shoulder" to support this specific code.
• Do not confuse with other forms of osteitis or osteoarthritis; Paget's disease has distinct pathological features.
• Consider additional codes for any associated complications, such as pathological fractures (M84.58) or nerve compression, if documented.