Oth nondisp fx of 7th cervcal vert, subs for fx w nonunion

This code signifies a non-displaced fracture of the seventh cervical vertebra that is not healing properly, as documented during a follow-up visit. The fracture is stable, meaning the bone fragments are still in their normal anatomical alignment, but the healing process has stalled, leading to a nonunion.

Apply this code when a patient presents for ongoing management of a previously diagnosed, non-displaced C7 vertebral fracture that has failed to unite. Documentation should clearly state "nonunion" and specify the cervical vertebra involved (C7). This code is appropriate for subsequent encounters after the initial treatment of the fracture.

• Ensure documentation explicitly states "nonunion" and "nondisplaced" for the C7 fracture.
• This code is for subsequent encounters; the initial encounter for the fracture would use a different seventh character.
• Distinguish from malunion, which implies healing in an abnormal position, not a failure to heal.