Nondisp fx of hook process of hamate bone, unsp wrist, init

This diagnosis code signifies a break in the hook-shaped projection of the hamate bone, a carpal bone in the wrist, where the bone fragments remain in their normal anatomical alignment. The injury affects an unspecified wrist and is being treated for the first time as a closed fracture, meaning the skin over the fracture is intact.

This code is appropriate for documenting an initial presentation of a hamate hook fracture that is confirmed as nondisplaced through imaging. It is used when the specific wrist (left or right) is not documented or cannot be determined. This code applies to the initial phase of treatment for such a fracture.

• Ensure documentation clearly states "nondisplaced" and "initial encounter" for a closed fracture.
• Only use this code when the affected wrist is not specified in the medical record.
• Verify that the fracture is indeed of the hook process of the hamate, not another part of the bone or another carpal bone.