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Unified Medical Language System® (UMLS®)

LOINC Source Information

Web site:
http://www.loinc.org/

Authority
The Logical Observation Identifiers Names and Codes terminology (LOINC®) was developed and is maintained by the Regenstrief Institute, Inc., a non-profit medical research organization associated with Indiana University.

Purpose
The purpose of LOINC is to facilitate the exchange and pooling of clinical or laboratory results for clinical care, outcomes management, claims attachment, and research by providing a set of universal codes and names. LOINC codes allow users to merge clinical results from many sources into one database for patient care, clinical research, or management.

Description
LOINC provides formal names and standardized codes for laboratory and other clinical observations. The data cover laboratory terminology, vital signs, hemodynamics intake/output, EKG, obstetric ultrasound, cardiac echo, urologic, imaging, gastroendoscopic procedures, pulmonary ventilator management, and selected survey instruments.

Metathesaurus Scope
The Metathesaurus representation of LOINC also includes expanded abbreviations as well as parts data and the multi-axial hierarchy used by the Regenstrief LOINC Mapping Assistant (RELMA) tool.

The Metathesaurus also includes the following LOINC translations:

  1. German, Austria Edition
  2. German, Switzerland Edition
  3. German, Germany Edition
  4. Greek, Greece Edition
  5. Spanish, Argentina Edition
  6. Spanish, Switzerland Edition
  7. Spanish, Spain Edition
  8. Estonian, Estonia Edition
  9. French, Belgium Edition
  10. French, Canada Edition
  11. French, Switzerland Edition
  12. French, France Edition
  13. Italian, Switzerland Edition
  14. Italian, Italy Edition
  15. Korean, Korea Edition
  16. Dutch, Netherlands Edition
  17. Portuguese, Brazil Edition
  18. Russian, Russia Edition
  19. Turkish, Turkey Edition
  20. Chinese, China Edition

Audience
LOINC users include:

  • hospitals,
  • health care systems including pediatric care systems,
  • clinical and research laboratories,
  • public health departments, including CDC,
  • electronic health record (EHR) developers, and
  • software developers.

Update Frequency
LOINC is updated twice per year, in June and December.

Metathesaurus Update Frequency
LOINC is an updated source in each Metathesaurus release.

Sites Consulted

  1. LOINC® [Internet]. Indianapolis (IN): Regenstrief Institute, Inc.; c2000-2009. Logical Observation Identifiers Names and Codes (LOINC®); [cited 2009 May 22]. Available from: http://www.loinc.org
  2. LOINC® [Internet]. Indianapolis (IN): Regenstrief Institute, Inc.; c1994-2015. LOINC FAQ; [cited 2015 Oct 16]. Available from: http://loinc.org/faq/getting-started/getting-started/.