Registry Accession Year (Class)

Field Length:  9

This field provides a unique identifier for the patient and consists of the year in which the patient was first seen at the reporting facility and the consecutive order in which the case was abstracted.  

The first four numbers specify the year and the last five numbers are the numeric order in which the patient was entered into the registry database.  A patient's accession number is never reassigned.  

A case in a multi-facility database may be associated with more than one facility, and this field exists in the class history record for each affiliated facility. When a facility creates or associates itself with a case, this field is automatically filled in with the facility's Registry Accession Year and Number (items 30320 - 30330).