Oth nondisp fx of 1st cervcal vert, subs for fx w delay heal

This code signifies a fracture of the C1 vertebra (atlas) that is not displaced, meaning the bone fragments are still in their normal anatomical alignment. The "subsequent encounter" indicates the patient is receiving follow-up care for this fracture, and "delayed healing" specifies that the bone is not mending at the expected rate.

This code is appropriate for follow-up visits where a patient is being monitored or treated for a nondisplaced C1 fracture that has not healed within the typical timeframe. Documentation should explicitly state "delayed healing" or provide clinical evidence supporting this assessment, such as persistent pain, lack of callus formation on imaging, or continued instability.

• Ensure documentation clearly specifies "nondisplaced" and "delayed healing" for the C1 fracture.
• Distinguish from initial encounters (A) or routine healing (D) for the same fracture.
• Do not confuse with displaced fractures (S12.000-S12.001) or fractures of other cervical vertebrae.