The 2D barcoded VIS allows providers to scan the name and edition date of a VIS into an electronic medical record (EMR), IIS, or other electronic database.
Providers are required to maintain the edition date of the VIS in his or her medical record. The VIS barcode does not contain any data that is not currently on the VIS, and there is no requirement that immunizers supply VIS data to IIS.
There are two fields contained within the 2D barcode on the VIS. The first field is a code that identifies the VIS document type (MMR, seasonal influenza, anthrax, etc.). The second field is the edition date of the VIS. The VIS Lookup table contains codes for these fields that EMRs and IISs may need to add to their applications to accommodate this information and associates each code with its human readable equivalent.
EMR and IIS vendors may need to add fields to the EMR to record the VIS document type and edition date.
Currently, the VIS document type may not be recorded; the actual vaccine administered may be used by providers as a proxy. CDC suggests the addition of a field for VIS document type.