Oth traum displ spondylolysis of 7th cervcal vert, 7thB

This code signifies a forward displacement of the seventh cervical vertebra (C7) relative to the vertebra below it, caused by trauma, where the fracture is open. The displacement is not due to a pars interarticularis defect and is specifically an initial encounter for treatment of the open fracture.

Apply this code when documentation clearly indicates a traumatic spondylolisthesis of C7, explicitly stating it is displaced and involves an open fracture. This code is appropriate for the initial phase of treatment for the fracture, such as emergency room visits or initial hospitalization.

• Ensure documentation specifies "displaced" and "open fracture" for C7; otherwise, consider other S12.6- codes.
• The "B" seventh character indicates an initial encounter for an open fracture; subsequent care or closed fractures require different seventh characters or codes.
• Distinguish from pathological or congenital spondylolisthesis, which would be coded differently.