Da Vinci Health Record Exchange (HRex)
1.2.0-cibuild - STU 1.1

Da Vinci Health Record Exchange (HRex), published by HL7 International / Clinical Interoperability Council. This guide is not an authorized publication; it is the continuous build for version 1.2.0-cibuild built by the FHIR (HL7® FHIR® Standard) CI Build. This version is based on the current content of https://github.com/HL7/davinci-ehrx/ and changes regularly. See the Directory of published versions

## Data Type Profile: HRexIdentifierNamespaced - Mappings

Page standards status: Trial-use | Maturity Level: 3

Mappings for the hrex-identifier-namespaced data type profile.

### Mappings for HL7 v2 Mapping (http://hl7.org/v2)

HRexIdentifierNamespaced
Identifier | CX / EI (occasionally, more often EI maps to a resource id or a URL)
use | N/A
type | CX.5
system | CX.4 / EI-2-4
value | CX.1 / EI.1
period | CX.7 + CX.8
assigner | CX.4 / (CX.4,CX.9,CX.10)

### Mappings for RIM Mapping (http://hl7.org/v3)

HRexIdentifierNamespaced
Identifier | n/a, II - The Identifier class is a little looser than the v3 type II because it allows URIs as well as registered OIDs or GUIDs. Also maps to Role[classCode=IDENT]
id | n/a
extension | n/a
use | Role.code or implied by context
type | Role.code or implied by context
system | II.root or Role.id.root
value | II.extension or II.root if system indicates OID or GUID (Or Role.id.extension or root)
period | Role.effectiveTime or implied by context
assigner | II.assigningAuthorityName but note that this is an improper use by the definition of the field. Also Role.scoper

### Mappings for ServD (http://www.omg.org/spec/ServD/1.0/)

HRexIdentifierNamespaced
Identifier | Identifier
system | ./IdentifierType
value | ./Value
period | ./StartDate and ./EndDate
assigner | ./IdentifierIssuingAuthority