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

This code signifies a fracture of the C2 vertebra (axis) where the bone fragments are not in their normal anatomical alignment, and the skin and soft tissue overlying the fracture are compromised, exposing the bone. This specific code is used for the initial treatment of such an injury when the exact type of C2 fracture (e.g., odontoid, hangman's) is not specified in the medical record.

Apply this code for patients presenting with a newly diagnosed, open, displaced fracture of the second cervical vertebra. Documentation must clearly indicate an "open" fracture and "displaced" fragments, with the encounter being the initial phase of active treatment. It is appropriate when the specific anatomical location of the C2 fracture is not further detailed.

• Ensure documentation explicitly states "open fracture" and "displaced" for C2.
• This code is for the initial encounter; subsequent care would require different encounter characters (e.g., D for subsequent, S for sequela).
• Do not use this code if the specific type of C2 fracture (e.g., odontoid fracture) is documented; more specific codes exist.