The Long Road to Interoperability: A Seven-Year Journey

The journey to this milestone began in late 2018, coinciding with the start of a significant initiative at Audacious Inquiry. Initially focused on building a custom V2 to FHIR converter for clients, the team quickly recognized the broader need for a standardized approach. Early contributions from Audacious Inquiry, including meticulously crafted mappings, formed the foundation of what would become the HL7 V2 to FHIR guide.

The project’s longevity – spanning seven years from inception to standard publication – is a testament to the complexity of harmonizing decades-old data structures with modern API-driven architectures. The process involved transforming nearly 400 spreadsheets into over 250 FHIR ConceptMap resources, ensuring not only data translation but also computable access and consistent handling for automated conversion processes. Maintaining the integrity of the IG generator codebase and conducting detailed technical reviews were also crucial components of this extensive undertaking.

FHIR: The Future of Healthcare Data Exchange

FHIR’s modularity and RESTful API design offer significant advantages over traditional HL7 Version 2 messaging. By adopting FHIR, public health organizations can unlock new possibilities for data analytics, population health management, and real-time reporting. However, the transition requires overcoming the challenge of integrating with existing systems that rely on HL7 V2. This new standard provides a crucial pathway for that integration.

Did You Know?:

The implications extend beyond simply converting data formats. Modernizing public health data infrastructure allows for the creation of more responsive and effective public health programs. Imagine a scenario where real-time data from various sources – hospitals, clinics, laboratories – can be seamlessly integrated to track disease outbreaks, monitor vaccination rates, and allocate resources efficiently. This is the promise of FHIR-enabled public health.

But what challenges remain in fully realizing this vision? How can we ensure equitable access to these modernized data systems, particularly for smaller or under-resourced public health agencies?

Audacious Inquiry’s Next Steps: A Data Modernization Offering

Building on the success of the HL7 V2 to FHIR standard, Audacious Inquiry is developing a comprehensive Data Modernization offering specifically tailored for public health organizations. This offering will leverage the new standard to transform legacy data into FHIR resources accessible through modern APIs. The team is building a completely new software base to support both V2 and CDA to FHIR conversions, with further details to be unveiled at HIMSS 26.

Pro Tip:

This initiative represents a significant investment in the future of public health data infrastructure, paving the way for more informed decision-making and improved health outcomes for communities worldwide.

Frequently Asked Questions About HL7 V2 to FHIR Conversion

• What is the primary benefit of converting HL7 V2 data to FHIR?

  The primary benefit is improved interoperability, allowing for seamless data exchange with modern healthcare systems and applications that utilize the FHIR standard.

• How long did it take to develop the HL7 V2 to FHIR standard?

  The development process spanned seven years, from initial conception in late 2018 to the official publication of the Standard for Trial Use in October 2025.

• What role did Audacious Inquiry play in the creation of this standard?

  Audacious Inquiry contributed initial mappings that formed the foundation of the HL7 V2 to FHIR guide, and played a key role in the ongoing maintenance and technical review of the standard.

• What are FHIR ConceptMap resources?

  FHIR ConceptMap resources are used to define mappings between different code systems, enabling the translation of data from one format to another, such as from HL7 V2 to FHIR.

• Where can I learn more about the HL7 V2 to FHIR standard?

  You can find more information on the HL7 website, specifically the HL7 Version 2 to FHIR Standard for Trial Use page.

• Will this conversion process impact existing HL7 V2 systems?

  The conversion process is designed to coexist with existing HL7 V2 systems, providing a pathway for gradual modernization without disrupting current operations.