Displ post arch fx 1st cervcal vert, 7thD

This code signifies a fracture of the posterior arch of the C1 vertebra that is no longer in its anatomical position (displaced). The "subsequent encounter" indicates the patient is receiving follow-up care for this fracture, which is currently healing as expected without complications.

Apply this code for patients presenting for routine follow-up appointments, cast changes, or physical therapy sessions for a previously diagnosed and treated displaced posterior arch C1 fracture. Documentation should clearly state "subsequent encounter," "routine healing," and specify the displacement and location of the fracture.

• Ensure documentation specifies "displaced" and "posterior arch" of the C1 vertebra.
• The 7th character "D" is crucial and indicates routine healing during a subsequent encounter.
• Do not use this code for initial treatment or for fractures with delayed or nonunion healing.