Da Vinci Health Record Exchange (HRex)
1.2.0 - STU 1.2 United States of America flag

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 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

CodeSystem: HRex Temporary Code System

Official URL: http://hl7.org/fhir/us/davinci-hrex/CodeSystem/hrex-temp Version: 1.2.0
Standards status: Trial-use Active as of 2026-02-26 Maturity Level: 3 Computable Name: HRexTempCodes
Other Identifiers: OID:2.16.840.1.113883.4.642.40.19.16.1

Codes temporarily defined as part of the HRex implementation guide. These will eventually migrate into an officially maintained terminology (likely HL7's UTG code systems).

This Code system is referenced in the definition of the following value sets:

Properties

This code system defines the following properties for its concepts

NameCodeURIType
Not Selectable abstract http://hl7.org/fhir/concept-properties#notSelectable boolean

Concepts

This case-sensitive code system http://hl7.org/fhir/us/davinci-hrex/CodeSystem/hrex-temp defines the following codes in a Is-A hierarchy:

LvlCodeDisplayDefinitionNot Selectable
1 data-request data request task A type of Task asking the owner to deliver the data corresponding to the characteristics defined by the Task.inputs to the Task.beneficiary
1 data-query data query input Indicates the parameters of a FHIR RESTful search to be executed whose results are requested. The content will be the query URL following the 'base'. E.g. `Observation?...`
1 data-code data code input A code for a document or otherwise describing the characteristics of the information requested
1 data-value data values output The result of a data request
1 UMB Unique Product-independent Payer Person Identifier A unique identifier assigned to an individual that is consistent regardless of the individual irrespective of their role (subscriber, dependent, etc.) or which product(s) they have with that payer.
1 _reqcat Requirements Categories Codes that help to categorize requirements statements true
2   business business Requirements relating to the business operations of the entities responsible for a system
2   exchange exchange Requirements relating to when or how data is exchanged with other systems
2   processing processing Requirements related to how data is dealt with internally to a system
2   storage storage Requirements relating to when or how data is or is not persisted within a system
2   ui ui Requirements relating to the appearance of information on a user interface

Description of the above table(s).