Type III traum spondylolysis of second cervcal vert, sequela

This code signifies a chronic or late effect of a Type III traumatic spondylolisthesis (hangman's fracture) affecting the C2 vertebra. This specific type involves bilateral pedicle fractures of C2 with anterior displacement of the vertebral body, often resulting from hyperextension and axial loading injuries. The "sequela" designation indicates that this code is used for conditions arising as a residual effect of the initial injury, long after the acute phase has passed.

Apply this code when documenting long-term complications, chronic pain, neurological deficits, or ongoing instability directly attributable to a past Type III traumatic spondylolisthesis of C2. Documentation should clearly state the history of the hangman's fracture and the current condition being treated as a residual effect. This code is appropriate for follow-up care related to the lasting impact of the injury.

• Always ensure documentation explicitly links the current condition to the prior C2 hangman's fracture.
• Do not use for acute or initial treatment of the fracture; refer to acute fracture codes for that phase.
• Consider sequencing this code after any specific manifestation codes (e.g., chronic pain, myelopathy) if the sequela is the underlying cause.