Nondisp fx of lunate, unsp wrist, init for clos fx

This code signifies a break in the lunate bone, one of the carpal bones in the wrist, where the bone fragments remain in their normal anatomical alignment. The specific wrist (left or right) is not documented.

Apply this code when documentation confirms a lunate fracture without displacement, and the patient is presenting for the initial treatment of a closed injury (skin intact). This is appropriate for cases such as a fall onto an outstretched hand where imaging reveals an undisplaced lunate fracture.

• Ensure the documentation explicitly states "nondisplaced" or "undisplaced" for the lunate fracture.
• Verify that the encounter is for the initial treatment of the fracture.
• Confirm the fracture is closed; if open, a different code and seventh character would be required.