Unsp nondisp fx of first cervical vertebra, init for clos fx

This code signifies a fracture of the first cervical vertebra (atlas) that is not specified as displaced or comminuted. The fracture is considered stable, and the bony fragments remain in their anatomical alignment. This diagnosis is made upon the patient's initial presentation for treatment of the injury.

Use this code for a patient presenting with an acute, newly diagnosed, non-displaced fracture of the C1 vertebra. Documentation should clearly state "nondisplaced" or lack any mention of displacement, and confirm the fracture involves the first cervical vertebra. This code is appropriate for the initial visit where definitive treatment planning begins.

• Ensure documentation explicitly states "nondisplaced" or implies it through the absence of displacement details.
• Verify the fracture is specifically of the first cervical vertebra (C1); do not use for other cervical vertebrae.
• Confirm this is the initial encounter for the fracture; subsequent care would use a different encounter character.