Other nondisp fx of second cervical vertebra, sequela

This code signifies a long-term complication or late effect resulting from a previously sustained, nondisplaced fracture of the second cervical vertebra (C2), also known as the axis. The original fracture has healed, but the patient is now experiencing residual symptoms or conditions directly attributable to that past injury.

This code is appropriate when a patient presents with a current condition that is a sequela of a healed, nondisplaced C2 fracture. Documentation must clearly link the current symptoms (e.g., chronic pain, neurological deficits, limited range of motion) to the prior C2 fracture and specify that the fracture itself is no longer acute.

• Always sequence the sequela code first, followed by a code describing the specific residual condition (e.g., chronic pain, myelopathy).
• Ensure documentation explicitly states "sequela," "late effect," or clearly indicates the current condition is a residual problem from a healed C2 fracture.
• Do not use this code for acute or active C2 fractures; those require codes from the acute fracture series (S12.1-).