A three-digit code identifying a specific category of extramural activity. A two-letter code identifying the assignment or funding NIH Institute or Center. A five-digit number generally assigned sequentially to a series within an Institute, Center, or Division. Is preceded by a dash to separate it from the serial number. The grant year is increased by one for each succeeding renewal year.
Supplement designations follow the grant year or the amendment designation.
Amendment designations follow the grant year or the supplemental designation.