Unspecified nondisp fx of second cervical vertebra, sequela

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

Apply this code when documentation clearly indicates a sequela (e.g., chronic pain, nerve damage, restricted range of motion) stemming from a previously sustained, nondisplaced C2 fracture. The "S" seventh character indicates that this is a sequela, meaning the initial injury has resolved, and the current encounter addresses a residual condition.

• Ensure the documentation explicitly links the current condition to the past C2 fracture.
• Do not use this code for the initial treatment of the fracture or for subsequent care during the healing phase.
• Always sequence the sequela code first, followed by codes for the specific residual condition(s) being treated.