Dislocation of C7/T1 cervical vertebrae, subs encntr

This code signifies a dislocation between the seventh cervical vertebra (C7) and the first thoracic vertebra (T1) that is being treated during a subsequent encounter. This injury involves the displacement of these vertebral bodies from their normal anatomical alignment, often resulting from significant trauma.

Apply this code when a patient presents for follow-up care, such as cast changes, physical therapy, medication management, or monitoring of healing, for a previously diagnosed C7/T1 vertebral dislocation. Documentation should clearly indicate the dislocation at the C7/T1 level and specify that the encounter is not for the initial treatment of the injury.

• Ensure documentation explicitly states "subsequent encounter" or similar language indicating ongoing care, not initial treatment.
• Distinguish this from subluxation (partial dislocation), which has different codes.
• Always sequence this code after any associated external cause codes (e.g., fall, motor vehicle accident) if applicable for the initial injury.