Which statement best describes the difference between header data and detail data on UB-04?

• A. Header data tracks patient demographics; detail data includes encounter information and service lines.
• B. Header data includes service codes, while detail data includes patient demographics.
• C. Header data covers patient, payer, and encounter information; detail data covers each service line with codes and charges.
• D. Header data is optional; detail data is required.

Answer: (C)

The main idea is that UB-04 data is divided into two levels: header data and detail data. Header data carries the broad, claim-wide information about who the patient is, who is paying, and the overall encounter. This includes patient and payer identifiers and encounter-level details like admission and discharge dates, facility information, and claim control numbers. Detail data then breaks down the claim line by line: every service is listed as its own service line with its revenue code, procedure/diagnosis codes, units, and charges. This separation lets the claim be described at a high level while preserving precise line-item billing.

So, the statement that header data covers patient, payer, and encounter information and that detail data covers each service line with codes and charges is the correct description. The other options mix where the codes and demographics belong or confuse which data is per-service versus per-claim.