Nondisp lateral mass fx 1st cervcal vert, 7thD

This code signifies a follow-up encounter for a fracture of the lateral mass of the first cervical vertebra (atlas) that is not displaced and is healing as expected. It indicates that the patient is receiving routine care during the healing phase of this specific neck injury.

Use this code for subsequent visits where a patient with a previously diagnosed nondisplaced lateral mass fracture of C1 is being monitored for routine healing. Documentation should confirm the fracture location, lack of displacement, and indicate ongoing, uncomplicated recovery (e.g., "fracture healing well," "stable C1 fracture").

• Ensure documentation explicitly states "nondisplaced" and specifies the "lateral mass" of the first cervical vertebra.
• This "D" seventh character indicates a subsequent encounter for routine healing; do not use for initial treatment or delayed/nonunion healing.
• Always sequence this code after any acute injury codes from the initial encounter, if applicable, or as the primary diagnosis for follow-up care.