Subluxation of C5/C6 cervical vertebrae, initial encounter

This code signifies a partial dislocation or misalignment of the fifth and sixth cervical vertebrae (C5/C6) in the neck. This subluxation implies that the joint surfaces are no longer in proper apposition but remain in partial contact. It typically results from trauma or injury to the cervical spine.

Apply this code when documentation explicitly states a subluxation of the C5/C6 vertebral segment due to an acute injury, and the patient is receiving initial active treatment for this condition. Supporting documentation should include a clear diagnosis of C5/C6 subluxation, often confirmed by imaging studies (e.g., X-ray, CT).

• Ensure documentation specifies "subluxation" and not a complete "dislocation" (which would be a different code series).
• Verify the specific vertebral level (C5/C6) is clearly documented; other cervical levels have distinct codes.
• The "A" seventh character indicates an "initial encounter," meaning the patient is receiving active treatment for the injury.