Oth nondisp fx of first cervical vertebra, init for clos fx

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. It specifically applies to fractures other than a Jefferson fracture, which involves a burst fracture of the C1 ring. This diagnosis indicates the initial treatment encounter for a closed fracture, where the skin remains intact over the injury.

Use this code for a patient presenting with a newly diagnosed, non-displaced fracture of the C1 vertebra, excluding a Jefferson fracture, where the skin is not broken. Documentation should clearly state "nondisplaced C1 fracture," "atlas fracture," or "fracture of first cervical vertebra" and specify that it is not a Jefferson fracture. This code is appropriate for the initial visit for evaluation and management of the injury.

• Ensure documentation explicitly states "nondisplaced" and "closed fracture" for accurate coding.
• Distinguish carefully from a Jefferson fracture (S12.04XA), which has a specific code.
• The "A" suffix indicates an initial encounter; subsequent care would use "D" (subsequent encounter) or "S" (sequela).