FHIR in Vietnam: a timeline from 2010 to today

TL;DR

• 2010-2017: selected private and international hospitals implemented HL7 v2-style HIS-LIS integration, with no national IG.
• 2017-2024: Decision 4210/QĐ-BYT launched the BHXH XML chain, refined through Decision 130/2023, Decision 4750/2023, and Decision 3176/2024.
• 2024: The hl7vn/vn-core-ig repository, published by the Department of Information Technology under the Ministry of Health, released the first draft VN Core IG R4 with 65 StructureDefinitions.
• 2025: More than twenty pivotal documents (Circular 13/2025, Resolution 202/2025, Law 91/2025, plus SNOMED/TVM/LOINC decisions) reshape the legal floor.
• 2026: An Omi HealthTech initiative launches hl7.org.vn, laying the groundwork for an HL7 Vietnam Affiliate path and a trial-use VN Core IG under an open Working Group-oriented model.

1. The four phases at a glance

The history of FHIR and HL7 in Vietnam is not linear. The real timeline is an interleaving of private-sector engineering effort and administrative decisions issued by the Ministry of Health and Vietnam Social Security (BHXH). The four phases below give readers a fast way to orient themselves:

The four phases do not have crisp boundaries. The 4210 XML format is still in production while the VN Core IG is being authored. Hospitals continue to run HL7 v2 internally even as they migrate selected data flows to FHIR. What matters is the direction of travel and the documents that act as hinges between phases.

2. 2010-2017 — HL7 v2 pilots in private hospitals

The first chapter of HL7 in Vietnam unfolded quietly inside private and international-provider settings. Some HIS/LIS/RIS deployments began using HL7 v2 integration modules supplied by foreign vendors, mainly for laboratory, imaging, and hospital-core connectivity. This formed the earliest cluster of HL7 v2 practice, but it did not create a national Implementation Guide.

The public sector followed later with limited integration projects. The eHealth Vietnam 2013 conference was one of the first forums to address HL7 head-on. Even so, no national Implementation Guide existed, no Vietnamese terminology was standardized, and every vendor interpreted HL7 v2 differently. Cross-system integration costs were therefore steep and were typically buried inside turnkey deployment contracts.

Four traits define this phase: private hospitals led because they had flexible IT budgets; public hospitals lacked both resources and incentives; vendor lock-in became a major technical barrier; and neither the Ministry of Health nor BHXH had a unified HL7 policy. FHIR did not even exist yet in Vietnam's official vocabulary, since the international DSTU1 was only released on 30/9/2014, and R4 (4.0.1) was not published by HL7 International until 30/10/2019.

3. 2017-2024 — The BHXH XML chain takes over

2017 was the administrative pivot. Decision 4210/QĐ-BYT (Ministry of Health) established the standard XML format that healthcare facilities use to transmit data to Vietnam Social Security (BHXH). Crucially, Decision 4210 is not an HL7 standard: it is an XML format defined by the MOH itself, modeled closely on the traditional billing-summary structure. Even so, this was the first time the country had a mandatory health-data standard, and every HIS vendor had to support it.

Decision 4210 was then revised continuously. Decision 130/QĐ-BYT (2023) replaced and broadened its scope; Decision 4750/QĐ-BYT, issued the same year, made further adjustments; and on 29 October 2024, Decision 3176/QĐ-BYT became the prevailing version, refreshing the MALYDO, KETQUA, TINHTRANGRA, MA_LOAI_RV, and gender CodeSystems. These four decisions form a continuous regulatory chain for the BHXH XML format, which the Vietnamese FHIR community typically refers to as the "4210 chain."

Across these eight years, Vietnamese health data flowed primarily through the MOH-defined XML format, alongside HL7 v2 inside individual hospitals. ICD-10 Vietnam was officially formalized in 2020, COVID codes were added in 2022, and the 2023 Law on Medical Examination and Treatment laid the foundation for the next legislative wave. HL7 and FHIR still had no binding national mandate, even as the practitioner community began to discuss them in earnest.

4. 2024 — The first draft VN Core IG

2024 marked Vietnam's first National Core FHIR IG. The repository github.com/hl7vn/vn-core-ig was attributed to the Department of Information Technology (under the Ministry of Health at the time of publication), with canonical URL http://fhir.ehealth.gov.vn/core/ and the package hl7.fhir.vn.core#1.0.0 on FHIR R4 (4.0.1). The listed authors are Tran Tung and Nguyen Hai Phong; in total, 9 commits since inception, with the last update in July 2024.

A local audit of the repository showed 65 StructureDefinition XML files — covering both profiles and extensions — across the Patient, Practitioner, Encounter, ServiceRequest, Specimen, Location, HealthcareDepartment, and CodeableConcept domains. That is a substantive count for a new IG, even if Must Support coverage, search parameters, and examples are still thin. A CI build was published at build.fhir.org/ig/hl7vn/vn-core-ig/, while the fhir.chiaseyhoc.vn community mirrored the content and fhir.ironx.io.vn kept a directory of versions.

The limitation of this phase was adoption. There was no Vietnamese Connectathon, no public sandbox, no major vendor with an official implementation, and no legal document referencing the IG. VN Core 1.0.0 therefore sat as an important technical reference, but never crossed into being an enforced standard. Many hospitals did not even know the IG existed until the 2025 regulatory wave forced them to investigate FHIR.

5. 2025 — The big-bang regulatory year

2025 was the "big-bang regulation year" for digital health in Vietnam. More than twenty pivotal documents were issued in just twelve months, reshaping the legal floor across identity, personal data, electronic medical records, and clinical terminology. The Vietnamese FHIR community had to face a hard fact: the 2024 draft VN Core IG could not keep pace with the speed of change.

The principal driver of 2025 is the pairing of Circular 13/2025 with Law 91/2025: electronic medical records must connect to the national ID number (CCCD) and to VNeID (Vietnam's national digital identification app), and all health data is classified as sensitive data requiring the highest level of protection. Resolution 202/2025 and the 2025 Law on Local Government Organization rewire the administrative geography, forcing the administrative-division CodeSystem and the FHIR Address structure to be redesigned. The SNOMED CT batches 1 to 3 and the TVM/YHCT batches 1 to 2 give Vietnamese clinical terminology a shared standard for the first time.

6. 2026 — The open Working Group-oriented phase

In January 2026, Law 91/2025 and Decree 356/2025 entered into force, marking the start of the implementation phase. The Ministry of Health issued Consolidated Documents 04, 06, and 08/2026/VBHN-BYT to merge the rules on medical-device calibration, commune health stations, and medical-device management into single sources of truth. In early February 2026, Decision 387/QĐ-BYT (05/02) issued the 2026 edition of the international classification of surgical procedures (ICD-9-CM), replacing Decision 4440/2020.

The most consequential public shift is the launch of hl7.org.vn in April 2026. This is an Omi HealthTech initiative, started by Phan Mạnh Hùng (HungPM) to build a trial-use VN Core IG, author a bilingual Vietnamese/English knowledge hub, and prepare the HL7 Vietnam Affiliate path. The hl7.org.vn canonical URL is http://fhir.hl7.org.vn/core/, distinct from the Ministry of Health canonical at http://fhir.ehealth.gov.vn/core/; any convergence between canonicals should be resolved through a Working Group and formal governance process.

7. 2027+ — The forward roadmap

The roadmap below reflects internal planning by HL7 Vietnam and Omi HealthTech, combined with deadlines that already appear in current legal documents. These milestones are directional and will be updated as official information becomes available.

Three conditions decide whether the roadmap succeeds. First, alignment with the Ministry of Health and BHXH — without an official governance route, FHIR will remain a side channel. Second, the technical capacity of vendors and hospitals — training, sandboxes, and Connectathons are the way to compress the learning curve. Third, a sustainable Working Group model — an HL7 Vietnam Affiliate needs funding, maintainers, and a transparent decision-making process so the IG remains actively governed.

8. Ten milestones worth remembering

1. 2010+ — Selected private/international hospitals begin using HL7 v2 integration modules from foreign vendors, opening private-sector HL7 practice.
2. 2017 — Decision 4210/QĐ-BYT establishes the unified national BHXH XML chain.
3. 2020 — Decision 4469/QĐ-BYT (28/10) issues ICD-10 in its Vietnamese edition.
4. 2024 — The hl7vn/vn-core-ig repository publishes the first draft VN Core IG R4 (65 StructureDefinitions, 9 commits).
5. 06/2025 — Resolution 202/2025/QH15 redraws the country into 34 provinces; the 2025 Law on Local Government Organization formalizes the two-tier model.
6. 06/2025 — Circular 13/2025/TT-BYT on electronic medical records ties EMRs to the national ID number and to VNeID.
7. 06/2025 — Law 91/2025/QH15 on personal data protection classifies all health data as sensitive.
8. 07/2025 — Decision 2427/QĐ-BYT launches the SNOMED CT Vietnam program (with batches 2 and 3 following).
9. 12/2025 — Law 134/2025/QH15 on Artificial Intelligence; Vietnam's first AI framework that explicitly covers healthcare.
10. 04/2026 — hl7.org.vn launches; Omi HealthTech kicks off a Working Group-oriented trial-use initiative and the bilingual knowledge hub.

9. Frequently asked questions

Why is Vietnam behind Japan and Korea?

JP Core (Japan) launched early and is operated professionally by HL7 Japan; KR Core (Korea) is similarly backed by the HL7 Korea Affiliate. Vietnam has no Affiliate yet, public-sector health-IT budgets are constrained, and entrenched vendor lock-in dampens the incentive to open up standards. That said, 2025 and 2026 are reversing the picture quickly.

Will the Ministry of Health accept the community VN Core?

No public announcement has formally recognized the draft yet. The version started by Omi HealthTech uses the fhir.hl7.org.vn canonical, which is independent of the fhir.ehealth.gov.vn canonical maintained by the MOH IT Department. Once an official Working Group or MOU exists, the two streams can be compared through a technical matrix and handled under the agreed governance decision.

Is the hl7vn/vn-core-ig repository still being maintained?

No new public commit appears after Q3/2024. When using that repository as a technical reference, treat it as a historical VN Core R4 milestone and verify with official channels before using it for production implementation.

When will FHIR fully replace the XML 4210/3176 chain?

On the current roadmap, the earliest realistic horizon is 2029-2030, and it depends on consensus from Vietnam Social Security (BHXH). During the transition, FHIR and the XML chain will run in parallel through standard ConceptMaps.

10. Read next

This page is a living reference. Send data contributions, edits, and critiques to [email protected]; the public tracker will be published from the governance page once the Working Group stabilizes.