This page lists specific source data elements and provides information on their representation in the UMLS Metathesaurus.
VSAB: LNC274
1. New Class:
Abbreviation | Class |
---|---|
PANEL.EYE.SPECULAR MICROSCOPY | Specular microscopy panel |
PANEL.SURVEY.CoVSocEcon | SARS-CoV-2 Related Socioeconomic Questionnaire panel |
SURVEY.CoVSocEcon | SARS-CoV-2 Related Socioeconomic Questionnaire survey |
The complete LOINC distribution includes the following.
All data files have accompanying ReadMe and ReleaseNotes text files. In addition, LOINCUsersGuide.pdf provides detailed information.
File Name | Description |
---|---|
Loinc.csv | Primary LOINC data files |
MapTo.csv | Mappings between current and retired codes |
ComponentHierarchyBySystem.csv | The records in this file represent nodes of the
hierarchy, whether LOINC Parts or full LOINC codes. The ordered sequence at any level of the hierarchy is given by the SEQUENCE field. Top level nodes in the hierarchy are those where PATH_TO_ROOT is null. This is a "Comma Separated Value" text file. |
Parts.csv | Parts names and codes |
PartLinks.csv | Part links, for relationships and hierarchy |
PanelsAndForms.csv | Mappings between LOINC panels and their members. |
LoincAnswerListLink.csv | Links LOINC terms with associated Answer Lists |
AnswerList.csv | Data for Answer Lists that are associated with any of the LOINC terms included in the current LOINC release. |
LoincUniversalLabOrdersValueSet.csv | Members of the LOINC Universal Lab Orders Value Set |
LoincIeeeMedicalDeviceCodeMappingTable.csv | Linkages between LOINC terms and content from the IEEE 11073(TM) 10101 Standard for Health informatics - Point-of-care medical device communication - Nomenclature and 10101a Nomenclature Amendment. |
LoincRsnaRadiologyPlaybook.csv | Linkages between LOINC radiology terms, the attribute values of the Unified Model as both LOINC Parts and RadLex terms, and any applicable mappings to RadLex Playbook terms. |
ImagingDocumentCodes.csv | A subset of document codes in LOINC that represent imaging procedures and reports. |
ConsumerName.csv | LOINC term Consumer Names |
Group.csv | Data representing unique Groups. Includes parent, inactive, and deprecated groups. |
GroupLoincTerms.csv | Data representing unique Groups and their unique LOINC terms |
GroupAttributes.csv | Data representing unique Groups and their attributes |
ParentGroup.csv | Data representing unique Parent Groups |
ParentGroupAttributes.csv | Data representing unique Parent Groups and their attributes |
Not included:
Loinc.csv:Fields that are
for internal (LOINC) use are not processed for the
Metathesaurus.
Fields that are not used are indicated by "Not used" in the
"Representation" columns below.
Details on format of input files and representation of source data. Consult the LOINC documentation for additional details.
# | Field | Description | Representation |
---|---|---|---|
1 | LOINC_NUM | Unique Code; format is #####-# | MRCONSO.CODE, SCUI |
2 | COMPONENT | Fields 2-7 contain the six parts of the name. The fully-specified name for a given LOINC code is constructed by concatenating the contents of these fields, inserting a colon (":") between each element. |
|
3 | PROPERTY |
|
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4 | TIME_ASPCT |
|
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5 | SYSTEM |
|
|
6 | SCALE_TYP |
|
|
7 | METHOD_TYP |
|
|
8 | CLASS | Arbitrary classification of the terms for grouping related observations together. See Table 32 in the LOINC Users' Guide for values. |
|
9 | VersionLastChanged | The LOINC version number in which the record has last changed. | MRSAT.ATN = "VERSION_LAST_CHANGED" |
10 | CHNG_TYPE | Change Type Code: "DEL" = delete (deprecate); "ADD" = add; "NAM" = change to Analyte/Component (field #2); "MAJ" = change to name field other than #2 (#3 - #7); "MIN" = change to field other than name; "UND" = undelete | MRSAT.ATN = "LCT" |
11 | DefinitionDescription | Narrative text that describes the LOINC term | MRSAT.ATN = "SOS" |
12 | STATUS | Status Valid values are: ACTIVE
DEPRECATED DISCOURAGED TRIAL |
|
13 | CONSUMER_NAME | Consumer-friendly name for this term. Content is experimental (beta). | MRSAT.ATN = "CONSUMER_NAME" |
14 | CLASSTYPE | 1 = Laboratory; 2 = Clinical class; 3 = Claims attachments; 4=Surveys |
|
15 | FORMULA | Regression equation details | MRSAT.ATN = "LFO" |
16 | EXMPL_ANSWERS | Examples of valid answers | MRSAT.ATN = "LEA" |
17 |
SURVEY_QUEST_TEXT | Question from survey instrument | MRSAT.ATN = "LQT" |
18 | SURVEY_QUEST_SRC | Name of survey instrument and item/question number | MRSAT.ATN = "LQS" |
19 | UNITSREQUIRED | Y/N indicates whether units are required for OBX segment in a HIPAA attachment | MRSAT.ATN = "LUR" |
20 | RELATEDNAMES2 | Synonyms for each part of the fully-specified LOINC name (component, property, time, system, scale, method) | MRSAT.ATN = "LRN2" |
21 | SHORTNAME | Concatenation of the fully-specified LOINC name | MRCONSO.STR, TTY = "OSN", "OOSN" |
22 | ORDER_OBS | Defines term as an order only, observation only, both, or Subset | MRSAT.ATN = "LOR" |
23 | HL7_FIELD_SUBFIELD_ID | Indicates that the content should be delivered in the named field/subfield of the HL7 message. | MRSAT.ATN = "HL7_FIELD_SUBFIELD_ID" |
24 | EXTERNAL_COPYRIGHT_NOTICE | External copyright holder information | MRSAT.ATN = "COPYRIGHT" |
25 |
EXAMPLE_UNITS | Indicates representative units | MRSAT.ATN = "EXAMPLE_UNITS" |
26 | LONG_COMMON_NAME | Readable version of LOINC term | MRCONSO.STR, TTY = "LC" or "OLC" |
27 | EXAMPLE_UCUM_UNITS | Example units of measure expressed as UCUM units | MRSAT.ATN = "EXAMPLE_UCUM_UNITS" |
28 | STATUS_REASON | Classification of the reason for concept status. This field will be Null for ACTIVE concepts, and optionally populated for terms in other status where the reason is clear. DEPRECATED or DISCOURAGED terms may take values of: AMBIGUOUS, DUPLICATE, or ERRONEOUS | MRSAT.ATN = "STATUS_REASON" |
29 | STATUS_TEXT | Explanation of concept status in narrative text. This field will be Null for ACTIVE concepts, and optionally populated for terms in other status. | MRSAT.ATN = "STATUS_TEXT" |
30 | CHANGE_REASON_PUBLIC | Detailed explanation about special changes to the term over time. | MRSAT.ATN = "CHANGE_REASON_PUBLIC" |
31 | COMMON_TEST_RANK | Numeric ranking of approximately 2,000 common tests performed by hospitals. | MRSAT.ATN = "COMMON_TEST_RANK" |
32 | COMMON_ORDER_RANK | Ranking of approximately 300 common orders performed by laboratories in the USA. | MRSAT.ATN = "COMMON_ORDER_RANK" |
33 | COMMON_SI_TEST_RANK | Corresponding SI terms for 2000 common tests performed by laboratories in USA. | MRSAT.ATN = "COMMON_SI_TEST_RANK" |
34 | HL7_ATTACHMENT_STRUCTURE | Valid values: STRUCTURED or UNSTRUCTURED. STRUCTURED terms are the allowed document type codes in the Consolidated CDA Implementation guide. UNSTRUCTURED terms are based on the PIUC guide. | MRSAT.ATN = "HL7_ATTACHMENT_STRUCTURE" |
35 | EXTERNAL_COPYRIGHT_LINK | Used for terms with an additional third party
copyright. The field is populated with the
COPYRIGHT_ID from SourceOrganization.csv. |
MRSAT.ATN = "EXTERNAL_COPYRIGHT_LINK" |
36 | PanelType | Describes a panel as a "Convenience group", "Organizer", or "Panel'. | MRSAT.ATN = "PANEL_TYPE" |
37 | AskAtOrderEntry | List of LOINC codes that represent optional Ask at Order Entry (AOE) observations. | MRSAT.ATN = "ASK_AT_ORDER_ENTRY" |
38 | AssociatedObservations | List of LOINC codes that represent option associated observation(s). | MRSAT.ATN = "ASSOC_OBSERVATIONS" |
39 | VersionFirstReleased | LOINC version number in which the record was first released. For oldest records where the version released number is not known, this field will be null. | MRSAT.ATN = "VERSION_FIRST_RELEASED" |
40 | ValidHL7AttachmentRequest | A value of 'Y' indicates that the LOINC code can be sent by a payer as part of an HL7 attachment request for additional information. | MRSAT.ATN = "HL7_ATTACHMENT_REQUEST" |
41 | DisplayName | Clinician friendly name. Algorithmically created. | MRCONSO.STR, TTY = "DN" |
# | Field | Representation |
---|---|---|
1 | LOINC | Obsolete LNC code. Used to create relationships between "LO" and "LN" atoms. The REL= RQ; The RELA=mapped_from/mapped_to. |
2 | MAP_TO | Current LNC code. |
3 | COMMENT | Rationale for using the recommended replacement term. |
# | Field | Representation |
---|---|---|
1 | PATH_TO_ROOT | Used to create the hierarchy tree under the " LOINCPARTS" concept |
2 | SEQUENCE | Not used |
3 | IMMEDIATE_PARENT | Not used |
4 | CODE | The identifier of the "child" concept; all end nodes are LOINC IDs; ancestors are LOINC PARTs |
5 | CODE_TEXT | Not used |
# | Field | Representation |
---|---|---|
1 | PartNumber | MRCONSO.CODE, SCUI |
2 | PartTypeName | Values are: ADJUSTMENT, CHALLENGE, CLASS, COMPONENT, COUNT, DIVISORS, FRAGMENTS FOR SYNONYMS, METHOD, MULTI-AXIAL, MULTIPART, PROPERTY, QUOTIENTS, SCALE, SUFFIX, SUPER SYSTEM, SUPERSYSTEMMULTI-AXIAL, SYSTEM, TIME, TIME MODIFIER. Used to create relationships between LOINC PARTS and LOINC IDs and value for ATN = PART_TYPE. |
3 | PartName | MRCONSO.STR, TTY = "LPN' |
4 | PartDisplayName | MRCONSO.STR, TTY = "LPDN"; MRSAT.ATN = "SOS"; ATV = PartTypeName:PartDisplayName |
5 | Status | Not used |
# | Field | Description | Representation | |||||||||||||||||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
1 | LoincNumber | A relationship (STYPE = "SCUI") is created between
the LoincNumber and the PartNumber (field3). The REL = "RO"; The RELA is assigned based on the PartTypeName (field 6) as follows:
Note: Some PART TYPEs (e.g., "MULTI-AXIAL" and
"SUPERSYSTEMMULTI-AXIAL" |
||||||||||||||||||||||||||||||||||||
2 | LongCommonName | Not used | ||||||||||||||||||||||||||||||||||||
3 | PartNUmber | A relationship (STYPE = "SCUI") is created between the LoincNumber (field 1) and the PartNumber. | ||||||||||||||||||||||||||||||||||||
4 | PartName | Not used | ||||||||||||||||||||||||||||||||||||
5 | PartCodeSystem | Not used | ||||||||||||||||||||||||||||||||||||
6 | PartTypeName | Used to assign the RELA | ||||||||||||||||||||||||||||||||||||
7 | LinkTypeName | Not used | ||||||||||||||||||||||||||||||||||||
8 | Property | Not used |
# | Field | Representation |
---|---|---|
1 | ParentId | Not used |
2 | ParentLoinc | Used as id_1 in relationships; RELA = member_of/has_member; REL = RN |
3 | ParentName | Not used |
4 | ID | Not used |
5 | SEQUENCE | Not used |
6 | Loinc | Used as id_2 in relationships; RELA = member_of/has_member; REL = RN |
7 | LoincName | Not used |
8 | DisplayNameForForm | Not used |
9 | ObservationRequiredInPanel | Not used |
10-31 | ObservationIdInForm... | Not used |
# | Field | Representation |
---|---|---|
1 | LoincNumber | Relationship created between Loinc concept code and AnswerList.csv.AnswerStringID; RELA = has_answer/answer_to |
2 | LongCommonName | N/A |
3 | AnswerListId | MRSAT.ATN = ANSWER_LIST_ID (Join field to AnswerList.csv) |
4 | AnswerListName | MRSAT.ATN = ANSWER_LIST_NAME |
5 | AnswerListLinkType | N/A |
6 | ApplicableContext | N/A |
# | Field | Representation |
---|---|---|
1 | AnswerListId | MRSAT.ATN = ANSWER_LIST_ID (Join field to LoincAnswerListLink.csv) |
2 | AnswerListName | MRSAT.ATN = ANSWER_LIST_NAME |
3 | AnswerListOID | MRSAT.ATN = ANSWER_LIST_OID |
4 | ExtDefinedYN | Not used |
5 | ExtDefinedAnswerListCodeSystem | Not used |
6 | ExtDefinedAnswerListLink | Not used |
7 | AnswerStringId | Relationship created between AnswerStringID and AnswerListLink.LoincNumber; MRCONSO.CODE, SCUI for TTY = LA |
8 | LocalAnswerCode | MRSAT.ATN = ANSWER_CODE |
9 | LocalAnswerCodeSystem | MRSAT.ATN = ANSWER_CODE_SYSTEM |
10 | SequenceNumber | MRSAT.ATN = SEQ_NO |
11 | DisplayText | MRCONSO.STR; TTY = LA; CODE = AnswerStringId |
12 | ExtCodeId | Not used |
13 | ExtCodeDisplayName | Not used |
14 | ExtCodeSystem | Not used |
15 | ExtCodeSystemVersion | Not used |
16 | ExtCodeSystemCopyrightNotice | Not used |
17 | SubsequentTextPrompt | MRSAT.ATN=SUBSEQUENT_TEXT_PROMPT |
18 | Description | MRSAT.ATN=DEFINITION |
19 | Score | MRSAT.ATN=LOINC_SCORE |
# | Field | Representation |
---|---|---|
1 | LOINC_NUM | LOINC codes included in this file have MRSAT.ATN =
UNIVERSAL_LAB_ORDERS_VALUE_SET with MRSAT.ATV = TRUE |
2 | LONG_COMMON_NAME | Not directly processed |
3 | ORDER_OBS | Redundant to ORDER_OBS attribute in Loinc.csv
(represented as MRSAT.ATN = LOR) |
# | Field | Representation |
---|---|---|
1 | LOINC_NUM | Code/SCUI |
2 | LOINC_LONG_COMMON_NAME | Not used |
3 | IEEE_CF_CODE10 | MRSAT.ATN=IEEE_CF_CODE10 |
4 | IEEE_REFID | MRSAT.ATN=IEEE_REFID |
5 | EQUIVALENCE | MRSAT.ATN=EQUIVALENCE |
# | Field | Representation |
---|---|---|
1 | LoincNumber | A relationship is created between the LoincNumber
and the PartNumber |
2 | LongCommonName | Not used |
3 | PartNumber | A relationship is created between the LoincNumber and the PartNumber |
4 | PartTypeName | Used to identify the RELA |
5 | PartName | Part name; MRCONSO.STR.TTY=LPN |
6 | PartSequenceOrder | MRSAT.ATN=PART_SEQ_ORDER |
7 | RID | MRSAT.ATN=RID |
8 | PreferredName | MRSAT.ATN=RADLEX_PREF_NAME |
9 | RPID | MRSAT.ATN=RPID |
10 | LongName | MRSAT.ATN=RADLEX_PLAYBOOK_LONG_NAME |
# | Field | Representation |
---|---|---|
1 | LOINC_NUM | Code; MRSAT.ATN = IMAGING_DOCUMENT_VALUE_SET, MRSAT.ATV = TRUE |
2 | LOINC_LONG_COMMON_NAME | Not used |
# | Field | Representation |
---|---|---|
1 | LoincNumber | Code |
2 | ConsumerName | MRSAT.ATN = CONSUMER_NAME |
# | Field | Representation |
---|---|---|
1 | ParentGroupId | Relationship created between the ParentGroupId and the GroupID. MRREL.RELA = has_parent_group/parent_group_of |
2 | GroupId | Code, SCUI |
3 | Group | MRCONS.STR |
4 | Archetype | Relationship created between the GroupId and its Archetype. MRREL.RELA = has_archetype/archetype_of |
5 | Status | Used in determining the TTY (LG or OLG) and in creating MRSAT.ATN = STATUS. Valid values: Active, Inactive, Deprecated. |
6 | VersionFirstReleased | Not populated |
# | Field | Representation |
---|---|---|
1 | Category | MRSAT.ATN = CATEGORY. Linked to the rel_id of the 'has_loinc_number/loinc_umber_of' relationship. |
2 | GroupId | Used with MRREL.RELA = has_archetype/archetype_of and MRREL.RELA = has_loinc_number/loinc_number_of |
3 | Archetype | Relationship created between the GroupId and its Archetype. MRREL.RELA = has_archetype/archetype_of |
4 | LoincNumber | Relationship created between the GroupId and its LoincNumber. MRREL.RELA = has_loinc_number/loinc_number_of |
5 | LongCommonName | Not used |
# | Field | Representation |
---|---|---|
1 | ParentGroupId | Not used |
2 | GroupId | MRSAT.CODE |
3 | Type | MRSAT.ATN. Valid values: MOLECULAR_WEIGHT_OF_ANALYTE, DESCRIPTION, USAGE_NOTES |
4 | Value | MRSAT.ATV |