EHR Vendors

USIIS – EHR Vendors

Developing an Electronic Data Interface to USIIS

In October 2016, the Advisory Committee on Immunization Practices (ACIP) approved the Recommended Immunization Schedule for Children and Adolescents Aged 18 Years or Younger—United States, 2017.
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EHR Vendor Interface Status

The Utah Immunization Information System (USIIS) Program is interested in working with Utah providers and EHR vendors to implement electronic immunization data submissions via HL7 interfaces.
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File Specifications

The below USIIS HL7 Implementation Guides for immunization messaging describes the content and HL7 message mapping utilized to communicate information to USIIS.
USIIS HL7 2.5.1 Specifications
CDC HL7 2.5.1 Data Code Sets

The below CSV flat file format describes the content and data fields utilized to communicate information to USIIS.

Data can be downloaded into USIIS via an SFTP connection or through the USIIS File Manager (UFM) web application.

For more information on sending data to USIIS using the CSV flat file format, please email

USIIS CSV 4.0 File Format

COVID-19 Vaccine Required Data Elements

CDC requires that vaccination providers enrolled in the COVID-19 Vaccination Program report certain data elements for each dose administered within 24 hours of administration.

The below document summarizes requirements for both VXU messages and COVID-19 required data elements.
USIIS HL7 2.5.1 - VXU & COVID-19 Required Data Elements