Unsp traum nondisp spondylolysis of 2nd cervcal vert, 7thB

This code signifies a traumatic injury to the second cervical vertebra (C2) resulting in a nondisplaced spondylolisthesis, meaning a forward slippage of the vertebral body without significant displacement. The fracture is open, indicating a break in the skin or mucous membrane communicating with the fracture site. This is the initial encounter for treatment of this specific injury.

Use this code for a patient presenting for the first time with an open, traumatic, nondisplaced spondylolisthesis of the C2 vertebra. Documentation must clearly state the traumatic nature of the injury, the specific vertebra involved (C2), the nondisplaced nature of the spondylolisthesis, and that the fracture is open. This code is appropriate for the initial phase of active treatment.

• Ensure documentation specifies "nondisplaced" and "open fracture" for C2; otherwise, a different code for displaced or closed fractures may be more appropriate.
• Verify the encounter is truly "initial" for this specific injury; subsequent encounters will require a different seventh character.
• Distinguish from pathological spondylolisthesis, which would be coded differently.