Osteitis deformans of unspecified shoulder

This code describes Paget's disease affecting an unspecified shoulder. Paget's disease is a chronic bone disorder characterized by abnormal bone remodeling, leading to enlarged, misshapen, and weakened bones. In the shoulder, this can manifest as pain, stiffness, and deformity.

Use this code when documentation specifies osteitis deformans (Paget's disease) impacting the shoulder, but the laterality (left or right) is not specified. This diagnosis is typically made based on imaging studies (X-rays, bone scans) and elevated serum alkaline phosphatase levels.

• Ensure documentation clearly states "osteitis deformans" or "Paget's disease" affecting the shoulder.
• Avoid using this code if laterality is specified; instead, use the more specific codes for left (M88.812) or right (M88.811) shoulder.
• Code any associated pathological fractures or other complications of Paget's disease separately.