For CMS patients, where should the subluxation code be entered on the superbill?

• A. The Chief Complaint field
• B. In the first diagnosis box
• C. In the CPT code field
• D. In the patient demographics

Answer: (B)

In CMS billing, the primary diagnosis code for the encounter should go in the first diagnosis box on the superbill. The subluxation code is a diagnostic code that explains why the visit occurred and what condition is being treated, so it belongs in that primary diagnosis field. The chief complaint area is for the patient’s reason for visit and symptoms, not a formal diagnosis code. The CPT code field is reserved for procedure or service codes, and demographics are for basic patient information, not diagnoses. If there are additional diagnoses, they can go in the subsequent diagnosis boxes.