What does the Place of Service indicate on CMS-1500? Provide examples of common POS categories.

• A. It indicates the diagnosis code category
• B. It indicates where the service was provided; examples include Office, Inpatient Hospital, and Outpatient Hospital
• C. It indicates the payer's processing facility
• D. It indicates the service's billing frequency

Answer: (B)

Place of Service on the CMS-1500 shows where the medical service was provided. This matters because payment rules and reimbursement amounts can vary by setting, so the payer uses the POS to apply the correct policy to the claim. It is not about the diagnosis code, the payer’s processing facility, or how often a service is billed. Common POS categories include Office (a physician’s clinic), Inpatient Hospital (the patient is admitted to the hospital), Outpatient Hospital (treatment in a hospital setting without admission), Emergency Department, Home (a doctor’s home visit), Skilled Nursing Facility, and Ambulatory Surgical Center.