Other osteonecrosis of unspecified radius

This code signifies the death of bone tissue in an unspecified radius due to a compromised blood supply, not otherwise specified. This condition can lead to bone collapse and subsequent arthritis if left untreated. It represents a non-specific form of osteonecrosis affecting the radial bone.

Apply this code when documentation confirms osteonecrosis of the radius, but the specific type (e.g., post-traumatic, drug-induced) is not identified. This code is appropriate when the medical record clearly states "osteonecrosis of the radius" without further etiological detail.

• Ensure documentation specifies "unspecified radius" if the laterality is not documented.
• Avoid using this code if a more specific type of osteonecrosis (e.g., post-traumatic, steroid-induced) is documented; instead, use the appropriate specific code.
• Always sequence this code after any underlying cause or associated condition, if known and documented.