Immunization Information Systems
Immunization information systems (IISs), otherwise known as registries, are confidential, population-based, computerized databases that record all immunization doses administered by participating providers to persons residing within a given geopolitical area. They offer your practice the opportunity for confidential, secure, centralized, and immediate access to immunization records if you choose to participate as an authorized provider. IISs can be useful in identifying under- and over-immunized children, monitoring community immunization rates, identifying coverage gaps and improving vaccination rates.
Key Points to Know
- Use of an IIS benefits patients, their families and your practice. Use of a fully functional IIS reduces costs, streamlines your practice work flow and improves patient care.
- There are common standards for IISs. Immunization Information System (IIS) Functional Standards were first issued by the Centers for Disease Control and Prevention (CDC) in 1997 and have been maintained and updated since that time. The most current IIS Functional Standards, v4.0 took effect in 2019.
- There are core data elements collected by an IIS, which are critical for record exchange purposes, client de-duplication, vaccine management, immunization status evaluation, reminder / recall, and data analysis or use purposes.
Where Can I Find Information About My State or Jurisdiction's IIS?
The CDC has contact information on its IIS State/Territory/Registry Staff—Main and Technical Contacts page.
- AAP Immunization Information Technology Guide
- American Immunization Registry Association
- CDC Getting Started with IIS
- CDC About Immunization Information Systems
- CDC Report – Progress in Childhood Vaccination Data in Immunization Information Systems — United States, 2013 – 2016
- CDC Community Guide - Vaccination Programs: Immunization Information Systems
- CDC Immunization Information Systems (IIS) Functional Standards, v4.0
American Academy of Pediatrics