Oth traum displ spondylolysis of second cervcal vert, sqla

This code signifies a chronic or late effect of a traumatic injury to the second cervical vertebra (C2) that resulted in a displaced spondylolisthesis. This means one C2 vertebral body has slipped forward or backward relative to the one below it, and this displacement was caused by trauma, not a congenital defect or degenerative process. The "sequela" designation indicates that the code is used for complications or conditions arising as a direct result of the initial injury, after the acute phase has passed.

Use this code when documenting the long-term consequences or residual problems stemming from a past traumatic displaced spondylolisthesis of the C2 vertebra. This would apply to patients presenting with chronic pain, neurological deficits, or instability directly attributable to the old injury. Documentation should clearly state the traumatic origin of the spondylolisthesis and that the current encounter addresses a sequela, not the acute injury.

• Ensure documentation explicitly states the traumatic origin of the C2 spondylolisthesis and that the current condition is a sequela.
• Do not use this code for acute traumatic spondylolisthesis; instead, refer to the acute injury codes.
• Consider additional codes for any associated neurological deficits (e.g., myelopathy, radiculopathy) or chronic pain.