Global Resources
Cross-standard references that span every HL7 version
The reference material that does not belong to any single version: code systems, OIDs, mappings, and live terminology.
Most of the spec browser is organized by standard and version (v2.5.1, FHIR R4, CDA). Global Resources is the version-independent layer underneath: the coding systems, identifiers, and cross-standard mappings that every version references. It is reachable from the Global Resources menu in the header of any spec page.
The Global Resources hub, with the section sidebar on the left and the V2 to FHIR Mappings grid open on a selected code system.
The Sections
| Section | What it holds |
|---|---|
| Code Systems | All 642 coding systems from HL7 Table 0396 with their OIDs, FHIR URIs, categories, and status |
| OID Registry | A unified registry of HL7 object identifiers (tables, code systems, and structures), resolvable in both directions |
| FHIR Mappings | 471 V2-to-FHIR terminology mappings (plus a CDA/V3 view) linking v2 coding systems to their FHIR CodeSystem URIs |
| Transport Specs | The transport and encoding layer: HTTP, MLLP framing, and XML encoding rules |
| Terminology Search | Live search across 17 curated clinical code systems including ICD-10-CM, LOINC, RxNorm, SNOMED CT, HCPCS, NDC, ATC, and CVX — or widen the scope to the full vocabulary set |
| Administrative Data | NPI, provider taxonomy, and demographic reference data |
| Specification Search | Cross-version full-text search over the entire specification corpus |
Everything cross-links
Table references in the parser and spec browser resolve into these resources: a coding-system badge opens its Code Systems entry, an OID copies from the registry, and code systems marked Searchable open pre-filtered in Terminology Search.