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Unified Medical Language System® (UMLS®)

2012AB LOINC Source Information


Skip to: Atoms, Attributes, Definitions, Relationships, Mappings

VSABs:

  • LNC240
  • LNC240_AD8_2005
  • LNC240_BRADEN_1988
  • LNC240_CAM_2003
  • LNC240_FACIT
  • LNC240_FLACC_1997
  • LNC240_MDS20
  • LNC240_MDS30
  • LNC240_MLHFQ_1986
  • LNC240_NEUROQOL_2010 (Note: The year of this VSAB corrected from 2001 to 2010)
  • LNC240_OASIS_2002
  • LNC240_OPTIMAL_2005
  • LNC240_PHQ_9_1999
  • LNC240_RHO_2008
  • LNC240_SPERTUS_2005
  • LNC240_WHO_2006

Notes:
In addition to the LNC SAB, LOINC includes 15 subsources, which are assigned by an algorithm using field 34 (EXTERNAL_COPYRIGHT_NOTICE), field 8 (CLASS) and field 7 (METHOD_TYP). The representation described below apply to elements from all subsources. Due to licensing restrictions, concepts from the following subsources are not included in Metathesaurus processing:

  • Ages & Stages Questionnaire
  • Edinburgh Postnatal Depression Scale
  • TIMP (Test of Infant Motor Performance)
  • PROMIS (Patient Reported Outcomes Measurement System survey)
  • Veterans RAND 12 Item Health Survey

Summary of Changes:

New subsources:

RSAB
VSAB Description
LNC_AD8

LNC240_AD8_2005

AD8:Eight-item Informant Interview to Differentiate Aging and Dementia (AD8)
LNC_FACIT
LNC240_FACIT FACIT Measurement System - Functional Assessment of Chronic Illness Therapy (FACIT)
LNC_MLHFQ
LNC240_MLHFQ_1986 Minnesota Living with Heart Failure Questionnaire (MLHFQ)
LNC_SPERTUS
LNC240_SPERTUS_2005 Kansas City Cardiomyopathy Questionnaire

New termgroups:

 LNC240_NEUROQOL_2010/LO
 LNC240_NEUROQOL_2010/OLC
 LNC240_NEUROQOL_2010/MTH_LO
New attributes:
# Field
Description Representation
47
COMMON_SI_TEST_RANK

Corresponding SI terms for 2000 common tests performed by laboratories in the USA.

MRSAT.ATN = "COMMON_SI_TEST_RANK"

New Classes:
Class Description
MOLPATH.INV
Molecular Pathology
PANEL.PULM
Pulmonary order set
PANEL.SURVEY.CMS Centers for Medicare & Medicaid Services set
PANEL.SURVEY.EPDS
Edinburgh Postnatal Depression Scale set
PANEL.SURVEY.GNHLTH
General Healthy survey set
PANEL.SURVEY.HHS
Depart. Of Health and Human Services set
PANEL.SURVEY.MTLHLTH
Mental Health survey set
PANEL.SURVEY.NEURO
Neurological survey set
SURVEY.AAOS
Amer. Acad. Of Orthopaedic Surgeons survey
SURVEY.EPDS
Edinburgh Postnatal Depression Scale
SURVEY.GNHLTH
General Healthy survey
SURVEY.HHS
Depart. Of Health and Human Services survey
SURVEY.MTLHLTH
Mental Health survey
SURVEY.NEURO
Neurological survey

Original Files:

The UMLS uses files publically available at www.loinc.org, including: "LOINCDB.TXT" (compressed in "LOINC240.zip") and "LOINC_V240_MULTI-AXIAL_HIERARCHY.CSV" (compressed in "LOINC_V240_MULTI-AXIAL_HIERARCHY.ZIP"). In addition, the UMLS receives two files to facilitate building the hierarchy. For 2.40, these files were: "LOINC_PART_LINKS_V2-40_2012-06-28.txt" and "LOINC_PARTS_V2-40_2012-06-28.txt". Additional information, such as expansions of abbreviations, is extracted from LOINCManual.pdf.

Overview

Identifiers

LOINC Identifiers in the UMLS are generally based on field 1 of LOINCDB.TXT (LOINC_NUM), or field 1 of LOINC_PARTS (L_PART_ID). For some termtypes, the atom may be associated with multiple LOINC entities. For example, a component may be a part of multiple fully-specified names. In these cases, the atom (e.g. a CN, or Official Component Name), is assigned an MTHU# during Metathesaurus source processing.

  • CODE:
    • For term types LC, LN, LO, MTH_LN, MTH_LO, OLC, OOSN, OSN: the LOINC _NUM (field 1) from LOINCDB.TXT
    • For term types LPDN, LPN: the L_PART_ID (field 1) from LOINC_PARTS_*.txt
    • For term types CN, MTH_CN, HC, HS, LS: an MTHU#, assigned during Metathesaurus source processing.
  • SAUI: Not Applicable
  • SCUI: Same as CODE for term types LC, LN, LO, LPDN, LPN, MTH_LN, MTH_LO, OLC, OOSN, OSN
  • SDUI: Not Applicable

Expansions

Expanded forms of certain atoms are created during Metathesaurus source processing by applying abbreviation expansions extracted from the LOINC Manual. In these cases, the expanded form is generally assigned the same identifier as its original form. Expansions may also include converting patterns such as "little e" or “super little b" to “e" or "^b" respectively.


Atoms

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TTY ORIGIN
CN Official component name:
CODE = MTHU#, assigned during Metathesaurus source processing; same as CODE for respective MTH_CN as applicable.
STR = LOINCDB.TXT field 2, subfield 1 (COMPONENT).
HC Hierarchical class:
CODE = MTHU#, assigned during Metathesaurus source processing (same as CODE for respective HS).
STR = expanded form of LOINCDB.TXT field 8 for CLASS or expanded form of LOINCDB.TXT field 17 for CLASSTYPE.
An additional HC atom, “LOINCCLASSTYPES,” is added during Metathesaurus source processing as a hierarchical placeholder.
HS Short or alternate version of hierarchical term:
CODE = MTHU#, assigned during Metathesaurus source processing (same as CODE for respective HC).
STR = value of LOINCDB.TXT field 8 for CLASS, or value of LOINCDB.TXT field 17 for CLASSTYPE.
LC Long common name:
CODE = LOINCDB.TXT field 1 (LOINC_NUM)
STR = LOINCDB.TXT field 36 (LONG_COMMON_NAME)
TTY = LC is assigned if field 13 is not = "DEPRECATED"
LN Official fully-specified name:
CODE = LOINCDB.TXT field 1 (LOINC_NUM)
STR = LOINCDB.TXT fields 2-7, concatenated with colons, i.e. F2:F3:F4:F5:F6:F7
TTY = LN is assigned if field 13 is not = "DEPRECATED"
LO Obsolete official fully specified name:
CODE = LOINCDB.TXT field 1 (LOINC_NUM)
STR = LOINCDB.TXT fields 2-7, concatenated with colons, i.e. F2:F3:F4:F5:F6:F7
TTY = LO is assigned if field 13 = "DEPRECATED"
SUPPRESS = "O"
LPDN Parts display name:
CODE = LOINC_PARTS_*.txt field 1 (L_PART_ID)
STR = LOINC_PARTS_*.txt field 4 (DISPLAY_NAME)
LPDN atoms are only created for strings containing the pattern “Allergen Mix.”
LPN Parts name:
CODE = LOINC_PARTS_*.txt field 1 (L_PART_ID)
STR = LOINC_PARTS_*.txt field 3 (NAME_CASE_INSENSITIVE)
An additional LPN, “LOINCPARTS,” is added during Metathesaurus source processing as a hierarchical placeholder.
LS Expanded system/sample type:
CODE = MTHU#, assigned during Metathesaurus source processing
STR = Expanded form of LOINCDB.TXT field 5, subfield 1 (SYSTEM).
MTH_CN Component, with abbreviations expanded:
CODE = MTHU#, assigned during Metathesaurus source processing; same as CODE for respective CN as applicable.
STR = Expanded form of LOINCDB.TXT field 2, subfield 1 (COMPONENT).
MTH_LN Expanded obsolete fully specified name:
CODE = LOINCDB.TXT field 1 (LOINC_NUM)
STR = Expanded form of LOINCDB.TXT fields 2-7, concatenated with colons, i.e. F2:F3:F4:F5:F6:F7
TTY = MTH_LN is assigned if field 13 is not = “DEPRECATED”
MTH_LO Expanded obsolete fully specified name:
CODE = LOINCDB.TXT field 1 (LOINC_NUM)
STR = Expanded form of LOINCDB.TXT fields 2-7, concatenated with colons, i.e. F2:F3:F4:F5:F6:F7
TTY = MTH_LO is assigned if field 13 = "DEPRECATED"
SUPPRESS = O
MTH_LPN
Parts name:
CODE = LOINC_PARTS_*.txt field 1 (L_PART_ID)
STR = Plain text form of LOINC_PARTS_*.txt field 3 (NAME_CASE_INSENSITIVE)
OLC Obsolete long common name:
CODE = LOINCDB.TXT field 1 (LOINC_NUM)
STR = LOINCDB.TXT field 36 (LONG_COMMON_NAME)
TTY = OLC is assigned if field 13 = "DEPRECATED"
SUPPRESS = O
OOSN Obsolete official short name:
CODE = LOINCDB.TXT field 1 (LOINC_NUM)
STR = LOINCDB.TXT field 30 (SHORTNAME)
TTY = OOSN is assigned if field 13 = "DEPRECATED"
SUPPRESS = "O"
OSN Official short name:
CODE = LOINCDB.TXT field 1 (LOINC_NUM)
STR = LOINCDB.TXT field 30 (SHORTNAME)
TTY OSN is assigned if field 13 is not = “DEPRECATED”
XM Cross-mapping set:
This data is added during Metathesaurus source processing

Attributes

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ATN [Description] Origin
COPYRIGHT LOINCDB.TXT field 34 (EXTERNAL_COPYRIGHT_NOTICE)
CHANGE_REASON_PUBLIC
LOINCDB.TXT field 45
COMMON_SI_TEST_RANK
LOINCDB.TXT field 47
COMMON_TEST_RANK
LOINCDB.TXT field 46
COMMON_ORDER_RANK
LOINCDB.TXT field 48
CONSUMER_NAME
LOINCDB.TXT field 15
CURATED_RANGE_AND_UNITS LOINCDB.TXT field 39
DOCUMENT_SECTION LOINCDB.TXT field 40
EXAMPLE_UCUM_UNITS LOINCDB.TXT field 41
EXAMPLE_UNITS LOINCDB.TXT field 35
FROMRSAB This data is added during Metathesaurus source processing
FROMVSAB This data is added during Metathesaurus source processing
HL7_FIELD_SUBFIELD_ID LOINCDB.TXT field 33
HL7_V2_DATATYPE LOINCDB.TXT field 37
HL7_V3_DATATYPE LOINCDB.TXT field 38
LCA [ACSSYM] LOINCDB.TXT field 21 (ACSSYM)
LCB [Chemical base name] LOINCDB.TXT field 22 (BASE_NAME)
LCD [CDISC common tests] LOINCDB.TXT field 32 (CDISC_COMMON_TESTS)
LCL [Class] LOINCDB.TXT field 8 (CLASS)
LCN [Classtype] LOINCDB.TXT field 17 (CLASSTYPE)
LCS [Status] LOINCDB.TXT field 13 (STATUS)
LCT [Change type] LOINCDB.TXT field 11 (CHNG_TYPE)
LEA [Example answers] LOINCDB.TXT field 20 (EXMPL_ANSWERS)
LFO [Formula] LOINCDB.TXT field 18 (FORMULA)
LLR [Date last revised] LOINCDB.TXT field 10 (DATE_LAST_CHANGED)
LMM [Molecular weights] LOINCDB.TXT field 16 (MOLAR_MASS)
LMP [Map to code] LOINCDB.TXT field 14 (MAP_TO)
LNC [NAACCR ID] LOINCDB.TXT field 23 (NAACCR_ID)
LNE [Code table] LOINCDB.TXT field 24 (CODE_TABLE)
LOINC_COMPONENT LOINCDB.TXT field 2 (all subfields)
LOINC_METHOD_TYP LOINCDB.TXT field 7
LOINC_PROPERTY LOINCDB.TXT field 3
LOINC_SCALE_TYP LOINCDB.TXT field 6
LOINC_SYSTEM LOINCDB.TXT field 5
LOINC_TIME_ASPECT LOINCDB.TXT field 4
LOR [Order/observation] LOINCDB.TXT field 31 (ORDER_OBS)
LQS [Survey question source] LOINCDB.TXT field 26 (SURVEY_QUEST_SRC)
LQT [Survey question text] LOINCDB.TXT field 25 (SURVEY_QUEST_TXT)
LRN2 [Related names 2] LOINCDB.TXT field 29 (RELATEDNAMES2)
LSP [Species] LOINCDB.TXT field 19 (SPECIES)
LSU [Submitted units] LOINCDB.TXT field 28 (SUBMITTED_UNITS)
LUR [Units required] LOINCDB.TXT field 27 (UNITS_REQUIRED)
MAPSETRSAB This data is added during Metathesaurus source processing
MAPSETTYPE This data is added during Metathesaurus source processing
MAPSETVERSION This data is added during Metathesaurus source processing
MAPSETVSAB This data is added during Metathesaurus source processing
MTH_COPYRIGHT
Plain text version of LOINCDB.TXT field 34 (EXTERNAL_COPYRIGHT_NOTICE)
This data is added during Metathesaurus source processing
MTH_LEA
Plain text version of LOINCDB.TXT field 20 (EXMPL_ANSWERS)
This data is added during Metathesaurus source processing
MTH_LFO
Plain text version of LOINCDB.TXT field 18 (FORMULA)
This data is added during Metathesaurus source processing
MTH_LQT
Plain text version of LOINCDB.TXT field 25 (SURVEY_QUEST_TXT)
This data is added during Metathesaurus source processing
MTH_LRN2
Plain text version of LOINCDB.TXT field 29 (RELATEDNAMES2)
This data is added during Metathesaurus source processing
MTH_LSU
Plain text version of LOINCDB.TXT field 28 (SUBMITTED_UNITS)
This data is added during Metathesaurus source processing
MTH_SOS
Plain text version of LOINCDB.TXT field 12 (COMMENTS), LOINC_PARTS field 4 (DISPLAY_NAME)
This data is added during Metathesaurus source processing
MTH_MAPFROMCOMPLEXITY This data is added during Metathesaurus source processing
MTH_MAPFROMEXHAUSTIVE This data is added during Metathesaurus source processing
MTH_MAPSETCOMPLEXITY This data is added during Metathesaurus source processing
MTH_MAPTOCOMPLEXITY This data is added during Metathesaurus source processing
MTH_MAPTOEXHAUSTIVE This data is added during Metathesaurus source processing
SOS LOINCDB.TXT field 12 (COMMENTS)
LOINC_PARTS field 4 (DISPLAY_NAME)
STATUS_REASON
LOINCDB.TXT field 43
STATUS_TEXT
LOINCDB.TXT field 44
TORSAB This data is added during Metathesaurus source processing
TOVSAB This data is added during Metathesaurus source processing
XMAP This data is added during Metathesaurus source processing
XMAPFROM This data is added during Metathesaurus source processing
XMAPTO This data is added during Metathesaurus source processing

Definitions

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There are no text definitions for LOINC or LOINC subsources


Relationships

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REL RELA
inverse_RELA
Origin
CHD
PAR
SIB

The hierarchy is extracted from:
  • LOINCDB.txt, field 8 (CLASS) and field 17 (CLASSTYPE)
  • LOINC_V240_MULTI-AXIAL_HIERARCHY.CSV
RO analyzed_by
analyzes
Connects LS to LN or LO
RO associated_with Connects CN to LO or LN with CLASSTYPE of 3 (Claims Attachment).
RO has_adjustment
adjustment_of
Connects LPN where PART_TYPE = "ADJUSTMENT" with LN or LO, as per LOINC_PART_LINKS_*.txt
RO has_challenge
challenge_of
Connects LPN where PART_TYPE = "CHALLENGE" with LN or LO, as per LOINC_PART_LINKS_*.txt
RO has_class
class_of
Connects LPN where PART_TYPE = "CLASS" with LN or LO, as per LOINC_PART_LINKS_*.txt
RO has_component
component_of
Connects LPN where PART_TYPE = "COMPONENT" with LN or LO, as per LOINC_PART_LINKS_*.txt
RO has_divisor
divisor_of
Connects LPN where PART_TYPE = "DIVISORS" with LN or LO, as per LOINC_PART_LINKS_*.txt
RO has_evaluation
evaluation_of
Connects CN to LO or LN with CLASSTYPE of 4 (Surveys).
RO has_fragments_for_synonyms
fragments_for_synonyms_of
Connects LPN where PART_TYPE = "FRAGMENTS FOR SYNONYMS" with LN or LO, as per LOINC_PART_LINKS_*.txt
RO has_method
method_of
Connects LPN with PART_TYPE = "METHOD" with LOINC CODE indicated in LOINC_PART_LINKS_*.txt
RO has_property
property_of
Connects LPN where PART_TYPE = "PROPERTY" with LN or LO, as per LOINC_PART_LINKS_*.txt
RO has_scale
scale_of
Connects LPN where PART_TYPE = "SCALE" with LN or LO, as per LOINC_PART_LINKS_*.txt
RO has_suffix
suffix_of
Connects LPN where PART_TYPE = "SUFFIX" with LN or LO, as per LOINC_PART_LINKS_*.txt
RO has_supersystem
supersystem_of
Connects LPN where PART_TYPE = "SUPER SYSTEM" with LN or LO, as per LOINC_PART_LINKS_*.txt
RO has_system
system_of
Connects LPN where PART_TYPE = "SYSTEM" with LN or LO, as per LOINC_PART_LINKS_*.txt
RO has_time_aspect
has_time_aspect
Connects LPN where PART_TYPE = "TIME" with LN, as per LOINC_PART_LINKS_*.txt
RO has_time_modifier
time_modifier_of
Connects LPN where PART_TYPE = "TIME MODIFIER" with LN, as per LOINC_PART_LINKS_*.txt
RO measured_by
measures
Connects CN to LO or MTH_LN with CLASSTYPE of 1 (Laboratory) or 2 (Clinical).
RQ mapped_from
mapped_to
Connects an LO with an LN, indicating possible synonymy between a current code and a retired code, as per LOINCDB.TXT field 14 and LOINC_MAP_TO.txt
SY common_name_of
has_common_name
Connects an LN or LO with its LC or OLC respectively
SY expanded_form_of
has_expanded_form
Connects original and expanded forms of atoms, including: HS <--> HC; OSN <--> LN; OOSN <--> LO
SY
mth_expanded_form_of
mth_has_expanded_form
Connects original and expanded forms of atoms, including: CN <--> MTH_CN; LN <--> MTH_LN; LO <--> MTH_LO
SY
mth_plain_text_form_of
mth_has_plain_text_form
Connects original and plain text forms of LPN atoms to MTH_LPN atoms

Mappings

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The Metathesaurus includes mappings between LOINC 2.15 and CPT2005.