HL7 Vocabulary Domains
Primary Contributor |
Sandy Boyer Consultant
|
Vocabulary Co-Chair |
Christopher Chute Mayo Clinic/Foundation
|
Vocabulary Co-Chair |
James Cimino, M.D. Columbia University
|
Vocabulary Co-Chair |
W Ed Hammond, PhD. Duke University Medical Center
|
Vocabulary Co-Chair |
Stanley Huff, M.D. Intermountain Health Care
|
HL7 Version 3 Standard, Copyright Health Level Seven, Inc.© 2002. All Rights Reserved.
1 Introduction
1.1 Overview
2 Vocabulary contents
2.1 HL7 Vocabulary Domain Values
2.2 References to external terminologies
2.3 Cross-reference of domains to RIM
The HL7-defined vocabulary domain tables that have been developed for coded class attributes are stored in the HL7 repository,
from which a number of views have been extracted to produce the HL7 Vocabulary Domain Listings for the HL7 Reference Information
Model (RIM). The views are presented in table format and include the HL7 Vocabulary Domain Values, the HL7 Domain Tables and
Coded Attributes Cross-reference. HL7-recognized external vocabulary domains are described in the External Domains list.
The vocabulary domain name and the associated extensibility qualifier for each coded attribute in the RIM are specified in
the RIM narrative. This specification occurs as the first line of the attribute's description in the following format:
Vocabulary Domain: "MyVocabularyDomain" (CWE)
There is a link between the vocabulary domain name in the RIM listing and its entry in the HL7 Vocabulary Domain Values table
in this listing.
For those domains that are not yet developed, a domain name has been assigned, but the table contains no values and therefore
is not listed here.
Tables included in this representation include:
- The HL7 Vocabulary Domain Values table is organized alphabetically by domain table name or domain name and includes a mnemonic
code, concept identifier, print name, and definition/description for each coded value. (Abstract domains are not assigned
a code). The first column of the table contains an integer showing the level of indentation (containment) of the element
in that row. The second column contains an indented composite element. The indentation shows the containment hierarchy of
the concepts, with child concepts indented below their parent. The opening character of the composite entry indicates whether
the concept is: specialized (S) and thus is both coded and contains child concepts; abstract (A) which does not have a code
of its own but does contains child concepts; or a leaf term (L) which is coded but contains no children. The concept name
for abstract and specializable domains follows the opening character of the composite element. The composite element ends
with the mnemonic code for specializable and leaf concepts, offset by parentheses. The remaining columns of these tables show the unique concept identifier for the row, the mnemonic codes and print names
for non-abstract concepts, and the definition of the concept.The order of the rows is an alphabetic sequence of the domain names at each level of indentation, followed by the leaf terms
(in code sequence) at the same level. The children of the abstract and specializable domains are indented below their parents.
- The External Domains table is organized alphabetically by domain table name and includes the domain name, concept identifier,
the source code system, a defining expression for extracting the domain from the source system, and a description
- The HL7 Domain Tables and Coded Attributes Cross-reference Table is organized alphabetically by domain table name in column
one, and lists the coded RIM attribute(s) and/or the data type components that are supported by that vocabulary domain. For
RIM attributes, the data types and assigned coding strength are also shown. Both the RIM attributes and the data type components
are hyper-linked to the definition in their respective documents.