The date of birth of the patient in month, day, year order. The month is recorded as two digits ranging from 01 through 12. The day is recorded as two digits ranging from 01 to 31. The year is recorded as four digits ranging from 1875 through present. Age is calculated and used in the clinic code edit to identify age diagnosis conflicts and invalid or unknown age.
Patient gender is recorded at date of admission or start of care.
A valid code must be present. The gender of the patient is checked for consistency with the diagnosis and procedure codes. The clinic code edit is to identify gender diagnosis conflicts and invalid or unknown gender. The social security number of the patient receiving inpatient care. The format of SSN is 123456789 without hyphens.