Oth nondisp fx of sixth cervcal vert, subs for fx w nonunion

This code signifies a non-displaced fracture of the sixth cervical vertebra that is not healing properly, as documented during a follow-up visit. "Nonunion" indicates that the bone fragments have failed to unite after a reasonable period, requiring ongoing medical management.

Apply this code for patients presenting for follow-up care of a previously diagnosed, non-displaced C6 vertebral fracture where imaging or clinical assessment confirms nonunion. Documentation should clearly state "nonunion" and specify the encounter as subsequent for the fracture.

• Ensure documentation explicitly states "nonunion" and the specific vertebral level (C6).
• This code is for subsequent encounters; an initial encounter for the same fracture would use a different seventh character.
• Distinguish from malunion, which implies healing in an unsatisfactory position, rather than failure to heal.