Laboratory Specimen collection using bar code technology

Has anyone developed any VistA code to capture accession, collector and receipt time and initials for use in lab during specimen collection? We would like to be able to use bar code patient identification from the wristband and print labels for lab orders at the point of collection. Current VA VistA only captures accessioning time and initials...looking for code that would add the additional fields to capture collector and receiver initials and time of collection and receipt in lab.