Type III traum spondylolysis of second cervcal vert, init

This code signifies a traumatic anterior displacement of the C2 vertebral body relative to C3, specifically a Type III spondylolisthesis, which involves a bilateral fracture of the pars interarticularis. This injury is commonly known as a Hangman's fracture and is considered a closed fracture, meaning the skin is intact.

Apply this code for the initial treatment of a patient presenting with a newly diagnosed Type III traumatic spondylolisthesis of the C2 vertebra. Documentation should clearly state a "Hangman's fracture" or "bilateral pars fracture of C2" with anterior displacement, and specify the encounter as the first for this injury. Imaging reports (X-ray, CT) confirming the fracture type and displacement are essential.

• Ensure the documentation specifies "Type III" spondylolisthesis and "C2" vertebra; other types or levels will require different codes.
• The "XA" seventh character indicates an initial encounter; subsequent care will require different seventh characters (e.g., D for subsequent, S for sequela).
• Do not confuse with pathological spondylolisthesis or congenital forms, which are coded differently.