Which field requires a MMDDYYYY format for the date of birth (instead of a two-digit year)?

Which field requires a MMDDYYYY format for the date of birth (instead of a two-digit year)?

• A. FL 9a Mailing address
• B. FL 12 Admission
• C. FL 13 HR
• D. FL 10 Birthdate

Answer: (D)

The key idea is that birthdate needs a four-digit year to avoid ambiguity in identifying who the patient is and calculating age accurately. On the UB-04 form, the field labeled Birthdate is the one that must be entered in MMDDYYYY format. Using a four-digit year prevents confusion between centuries (for example, 01/02/50 could be 1950 or 2050) and ensures correct age calculations, eligibility, and matching across systems. Other fields listed may be dates too, but they do not require the four-digit year for birth information, so the birthdate field is the one that specifically uses MMDDYYYY.

The key idea is that birthdate needs a four-digit year to avoid ambiguity in identifying who the patient is and calculating age accurately. On the UB-04 form, the field labeled Birthdate is the one that must be entered in MMDDYYYY format. Using a four-digit year prevents confusion between centuries (for example, 01/02/50 could be 1950 or 2050) and ensures correct age calculations, eligibility, and matching across systems. Other fields listed may be dates too, but they do not require the four-digit year for birth information, so the birthdate field is the one that specifically uses MMDDYYYY.