Discussion documents, papers, and reports concerning the development of LOINC codes.

 archived discussion documents

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LOINC Committee Study of Units Variation

• Request for Tables of Laboratory Reporting Units Linked to LOINC Codes (12/2007)

HL7 LOINC Document Type Vocabulary Domain Development

These documents describe the strategy, policies, and procedures that the Clinical LOINC Committee follows in creating names and codes for clinical notes.

• Current Working Draft of Document Ontology Axis Values (under revision)
• Revised Document Ontology Axis Values (Approved 10/11/2007)
  
• HL7 LOINC Document TypeVocabularyDomain (09/24/2003)

Related Standards and Activities

LOINC Value Set of Universal Laboratory Order Codes

• LOINC orders value set

LOINC Codes for Newborn Screening

• LOINC newborn screening codes
  

LOINC Codes for Common Clinical Data Interchange Standards Consortium (CDISC) Tests

This document is a subset of the LOINC® database terms that have been identified by 3 central laboratories as the most frequently used terms in clinical trials. This is a small representation of the LOINC® codes and it is recommended that you use the RELMA® mapping tool to search the database.

• Common LOINC Codes for CDISC Tests (02/14/2005)

CDISC Standard

• CDISC LAB Base Model Version 1.0.1

UCUM

Regenstrief Institute also maintains the Unified Code for Units of Measure (UCUM) code system, a related standard that includes units of measures being contemporarily used in international science, engineering, and business.

RxTerms

RxTerms is a drug interface terminology derived from RxNorm for prescription writing or medication history recording. CMS is using RxTerms in a demonstration project of its post-acute care assessment tool (CARE), for which a LOINC representation of the assessment tool is also being developed.