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--- documentation:vocabulary:loinc [2019/05/02 07:09] – ptalapova
+++ documentation:vocabulary:loinc [2024/09/03 11:19] (current) – jcruz
@@ Line 1: / Line 1: @@
 ===== LOINC =====
-**Logical Observation Identifiers Names and Codes (LOINC)** is a standardized coding system for laboratory and clinical tests, procedures, observations, surveys, and corresponding results.
+Thank you for visiting the wiki! This page has moved to https://github.com/OHDSI/Vocabulary-v5.0/wiki/Vocab.-LOINC
-==== Sources ====
-All LOINC source information is obtained from the following:
-. LOINC Website (https://loinc.org/downloads/) that is supported by the Regenstrief Institute:
-  * LOINC Table Core (Observations and Measurements)
-  * LOINC Answers
-  * LOINC Multiaxial Hierarchy
-  * LOINC Document Ontology
-  * LOINC Panels and Forms
-  * LOINC Groups
-  * LOINC to SNOMED mapping
-  * LOINC Replacement Mapping
-. The National Library of Medicine (NLM) Website:
-  * LOINC To CPT Mapping
-. Ordered List ItemLOINC Users” Guide:
-  * Manual table of LOINC Classes
-==== Concept Names ====
-“**long_common_name**” field values are considered to be preferred terms for concept names
-“**consumer_name**”, “**shortname**” and “**relatednames2**” field values reside in the concept synonym table
-==== Standard Concepts ====
-All LOINC Concepts are Standard Concepts, while Concepts of the Source LOINC Class, LOINC Hierarchy are Classification Concepts.
-^Source Concept Type^Standard Concept^
-|LOINC Observations and Measurements|Standard|
-|LOINC Answers|Standard|
-|LOINC Hierarchy|Classification|
-|LOINC Classes|Classification|
-|LOINC Categories|Classification|
-|LOINC Groups|Classification|
-==== Concept Classes  ====
-Concepts in the LOINC vocabulary are assigned Concept Class as following:
-^Source^Resourced^Concept Class^Description^
-|LOINC|CLASSTYPE=1|Lab Test|The Universal Lab Order Codes Value Set contains the most frequent lab orders|
-| |CLASSTYPE=2|Clinical Observation|Anything that can be tested, measured, or observed about a patient without removing a specimen|
-| |CLASSTYPE=3|Claims Attachment|Information necessary to adjudicate claims for ambulance, rehabilitation, or emergency room services|
-| |CLASSTYPE=4|Survey|Set of questions on a survey or form|
-| |CLASS|LOINC Class|Similar to the Concept Classes of each LOINC Concept, but more detailed and hierarchical|
-|LOINC Hierarchy|CODE|LOINC Hierarchy|Similar to LOINC Class, but separate hierarchical system|
-|LOINC Answer|AnswerStringID|Answer|Observation result value as an answer to a LOINC Concept|
-==== Domains ====
-LOINC Concepts can have a Measurement or Observation Domain. This is assigned as following:
-^Source^Depending on ^Domain^
-|LOINC|CLASSTYPE=1 or 2|Measurement|
-| |CLASSTYPE=3 or 4|Observation|
-|LOINC Hierarchy|Concept_code>'LP76352-1'|Observation|
-| |Concept_code>='LP76352-1'|Measurement|
-|LOINC Class|Manual|Observation or Measurement|
-|LOINC Answer| |Meas Value|
-==== Relationships ====
-Relationships are defined within LOINC and between LOINC and CPT and LOINC and SNOMED:
-=== Internal LOINC relationships ===
-  - "Is a" relationships between LOINC Concepts and LOINC Hierarchy and LOINC Class Concepts
-  - "Has Answer" relationships between LOINC Concepts and LOINC Answer Concepts
-  - "Panel contains" relationships between LOINC Concepts
-=== LOINC to SNOMED relationships ===
-These relationships are defined as "LOINC - SNOMED eq" between "LOINC Hierarchy" Concepts and SNOMED Concepts representing the entity that is measured. Note that only a small fraction (1% as of late 2015) are currently mapped. Also, note that some of the mappings seem to confuse the testing for drugs with the drugs themselves.
-=== LOINC to CPT relationships ===
-These relationships are defined as "LOINC - CPT4 eq" between LOINC Lab Test Concepts and SNOMED Concepts. Note that only a small franction (2% as of late 2015) are mapped.
-=== Hierarchy ===
-All internal "Is a" and "Panel contains" relationships participate in the creation of the CONCEPT_ANCESTOR table, creating an internal hierarchy within LOINC not connected to the larger Measurement or Observation Domain space.