What is the purpose of the Date of Service field when a service spans multiple days?

• A. It records the date(s) of service for each line; for span services, multiple lines may capture the range.
• B. It records only the admission date.
• C. It records only the discharge date.
• D. It is optional and rarely used.

Answer: (D)

The Date of Service field shows when the service actually occurred for each charge line. When a service spans more than one day, you reflect that period by either listing a date range on the line or by having multiple lines so each day is documented. This timing information lets payers match charges to the exact days services were provided, which affects adjudication, eligibility, and how charges are bundled or separated. It’s not about admission or discharge dates, which belong to other fields. In practice, you would enter the specific date for single-day services, and for multi-day spans you use the range or multiple lines to accurately capture the service period.