Unsp disp fx of fourth cervical vertebra, init for clos fx

This code signifies a fracture of the fourth cervical vertebra (C4) where the bone fragments are not in their normal anatomical alignment. The specific type of fracture is not documented, and the skin over the fracture site remains intact. This code is used for the initial treatment phase of this injury.

Apply this code when documentation clearly indicates a C4 vertebral fracture that is displaced, but the specific fracture pattern (e.g., comminuted, transverse) is not specified. It is appropriate for the initial encounter for treatment of a closed fracture, such as in an emergency department visit or initial hospitalization. Supporting documentation would include imaging reports (X-ray, CT, MRI) confirming a displaced C4 fracture and physician notes detailing the initial treatment.

• Ensure documentation specifies "displaced" and "unspecified" fracture type for C4. If the fracture type is known, a more specific code should be used.
• Verify that the encounter is for the initial treatment of the fracture. Subsequent care would require a different seventh character.
• Confirm the fracture is "closed." If there is an open wound communicating with the fracture, an "open fracture" code would be appropriate.