Osteitis deformans of unspecified hand

This code signifies Paget's disease affecting an unspecified hand. It describes a chronic bone disorder characterized by abnormal bone remodeling, leading to enlarged and weakened bones in the hand, but without specifying which hand is affected.

Use this code when documentation confirms osteitis deformans (Paget's disease) impacting the hand, but the medical record does not specify laterality (left or right). This code is appropriate when the physician's notes indicate "Paget's disease of the hand" without further detail.

• Avoid using this code if laterality is documented; instead, select a more specific code for the left or right hand.
• Ensure the documentation clearly states "osteitis deformans" or "Paget's disease" to support this diagnosis.
• Consider co-occurring conditions such as pathological fractures (M84.5x) if present, and sequence accordingly.