Unsp disp fx of first cervical vertebra, init for opn fx

This code signifies an unspecified fracture of the atlas (C1 vertebra) that is displaced, meaning the bone fragments are not in their normal anatomical alignment. The "open fracture" designation indicates a break in the skin and soft tissue, exposing the bone or creating a pathway for external contamination. This code is specifically for the initial treatment of such an injury.

Use this code for a patient presenting with a newly diagnosed, displaced, and open fracture of the first cervical vertebra. Documentation should clearly state the C1 involvement, the displaced nature of the fracture, and evidence of an open wound communicating with the fracture site. This code is appropriate for the initial hospital admission or outpatient encounter for definitive treatment.

• Ensure documentation specifies "displaced" and "open" for accurate code assignment. If either is not documented, a different code may be required.
• This code includes the "initial encounter" designation; subsequent encounters for the same fracture will require a different seventh character.
• Always sequence this code as the primary diagnosis when it is the reason for the encounter.