CAQH CORE Connectivity establishes key connectivity, security and authentication requirements including acknowledgements, error handling, and the CAQH CORE Connectivity “Safe Harbor” creating a national connectivity mechanism that trading partners can be assured will be supported when healthcare information is exchanged.

As the healthcare industry continues to progress toward achieving alignment and interoperability across systems and technologies, updating common methods of connectivity and enhancing security is necessary to ensure requirements continue to meet industry need.

Current and Past Versions of CAQH CORE Connectivity

All CAQH CORE Infrastructure Operating Rules require the use of the most current CAQH CORE published and adopted version of the CAQH CORE Connectivity Rule. The most recent published and adopted version of CORE Connectivity: CAQH CORE Connectivity Rule vC4.0.0.

As organizations may be on varying implementation timelines in efforts to migrate to the most current published version of CAQH CORE Connectivity, the table below references all past and current CAQH CORE Connectivity Rules and associated technical documents. Entities seeking CORE Certification are required at a minimum to implement the version of CORE Connectivity published two years prior from when pursuing certification testing.

Implementers of the HIPAA mandated CAQH CORE Operating Rules are also required to maintain support for CORE Connectivity versions as noted in the table below.

For additional information about implementing CAQH CORE Connectivity, please contact the CAQH CORE Certification team at core@caqh.org.

For more information about federally mandated operating rules, please click here

*In 2020, CAQH CORE implemented a New Operating Rule Structure to transition the CAQH CORE Operating Rules from phase-based rule sets to rule sets based on business transactions.