Unsp nondisp fx of 1st cervcal vert, 7thG

This code signifies a fracture of the atlas (first cervical vertebra) that is not displaced, meaning the bone fragments remain in their normal anatomical alignment. The "subsequent encounter" indicates that the patient is receiving follow-up care for this fracture, and the "delayed healing" specifies that the bone is not mending at the expected rate.

Apply this code when a patient presents for ongoing treatment of an unshifted C1 fracture that has not healed within the typical timeframe. Documentation should clearly state "nondisplaced fracture of C1," "subsequent encounter," and explicitly mention "delayed healing" or provide clinical evidence supporting delayed union. This code is appropriate for follow-up appointments, imaging studies, or physical therapy related to the slow-healing fracture.

• Ensure documentation explicitly states "delayed healing" for the subsequent encounter.
• Distinguish from nonunion (S12.001K) or routine healing (S12.001D).
• Always sequence this code as a primary diagnosis when it is the reason for the encounter.