Unified Medical Language System® (UMLS®)
2010AA LOINC Source Information
VSABs:
- LNC229
- LNC229_BRADEN_1988
- LNC229_CAM_2003
- LNC229_FLACC_1997
- LNC229_MDS20
- LNC229_MDS30
- LNC229_OASIS_2002
- LNC229_PHQ_9_1999
- LNC229_RHO_2008
- LNC229_WHO_2006
Notes:
In addition to the LNC SAB, LOINC includes nine subsources, which are assigned by an algorithm using field 43 (EXTERNAL_COPYRIGHT_NOTICE), field 9 (CLASS) and field 7 (METHOD_TYP).
The representation described below apply to elements from all subsources.
Summary of Changes:
Changes since LNC227
LNC_MDS was removed:
To clarify version information, the SAB LNC_MDS has been removed. Its content remains and is divided between the two new sources LNC_MDS20 and LNC_MDS30.
Three subsources were added:
- LNC_CAM:
Adapted from: Inouye SK, vanDyck CH, Alessi CA, Balkin S, Siegal AP, Horwitz RI. Clarifying confusion: The Confusion Assessment Method. A new method for detection of delirium. Ann Intern Med. 1990; 113: 941-948. Confusion Assessment Method: Training Manual and Coding Guide, Copyright 2003, Sharon K. Inouye, M.D., MPH. - LNC_MDS20
- LNC_MDS30
LOINC includes data from two versions of the Minimum Data Set (MDS): 2.0 and 3.0. MDS is part of the U.S. federally mandated process for clinical assessment of all residents in Medicare or Medicaid certified nursing homes. This process provides a comprehensive assessment of each resident's functional capabilities and helps nursing home staff identify health problems. MDS is maintained by the Institute of Gerontology, University of Michigan, Ann Arbor, Michigan.
New Termtype: OLC
Obsolete Long Common Name (SUPPRESS = O). Previously, all atoms created from field 46, LONG_COMMON_NAME, were represented with TTY = LC.
Seven new classes were added
| Class | Description |
|---|---|
| DOC.QUALITY | Quality documents |
| EYE.OCT | Ophthalmology Optical Coherence Tomography (OTC) |
| PANEL.DOC | Documents panels |
| PANEL.EYE | Ophthalmology panels |
| PANEL.PHENX | PhenX Panel |
| PHENX | PhenX |
| PUBLICHEALTH | Public Health |
Original Files:
The UMLS uses files publically available at www.loinc.org, including: "LOINCDB.TXT" (compressed in "LOINCTAB.zip") and "LOINC_V229_MULTI-AXIAL_HIERARCHY.CSV" (compressed in "LOINC_V229_MULTI-AXIAL_HIERARCHY.zip"). In addition, the UMLS receives two files to facilitate building the hierarchy. For 2.29, these files were: "LOINC_PART_LINKS_V2-29_2009-12-30.txt" and "LOINC_PARTS_V2-29_2009-12-30.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 termtypes LC, LN, LO, LX, OLX, OSN, OOSN: the LOINC _NUM (field 1) from LOINCDB.TXT
- For termtypes LPN, LPDN: the L_PART_ID (field 1) from LOINC_PARTS_*.txt
- For termtypes CN, CX, HC, HS, LS, SN, SX: an MTHU#, assigned during Metathesaurus source processing.
- SAUI: Not Applicable
- SCUI: Not Assigned
- 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
)| TTY | ORIGIN |
|---|---|
| CN | Official component name: CODE = MTHU#, assigned during Metathesaurus source processing; same as CODE for respective CX, SN and SX as applicable. STR = LOINCDB.TXT field 2, subfield 1 (COMPONENT). |
| CX | Component, with abbreviations expanded: CODE = MTHU#, assigned during Metathesaurus source processing; same as CODE for respective CN, SN and SX as applicable. STR = Expanded form of 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 9 for CLASS or expanded form of LOINCDB.TXT field 23 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 9 for CLASS, or value of LOINCDB.TXT field 23 for CLASSTYPE. |
| LC | Long common name: CODE = LOINCDB.TXT field 1 (LOINC_NUM) STR = LOINCDB.TXT field 46 (LONG_COMMON_NAME) |
| 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 |
| 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, if field 15 = “DEL”. |
| 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). |
| LX | 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, if field 15 is not = “DEL”. |
| OLC | Obsolete long common name: CODE = LOINCDB.TXT field 1 (LOINC_NUM) STR = LOINCDB.TXT field 46 (LOINC_COMMON_NAME) SUPPRESS = O TTY = OLC is assigned if field 15 (STATUS) = “DEL” |
| OLX | 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, if field 15 = “DEL”. |
| OOSN | Obsolete official short name: CODE = LOINCDB.TXT field 1 (LOINC_NUM) STR = LOINCDB.TXT field 39 (SHORTNAME), if field 15 = “DEL”. |
| OSN | Official short name: CODE = LOINCDB.TXT field 1 (LOINC_NUM) STR = LOINCDB.TXT field 39 (SHORTNAME), if field 15 is not = “DEL”. |
| SN | Official component synonym: CODE = MTHU#, assigned during Metathesaurus source processing. Same as code for respective CN, CX and SX as applicable. STR = LOINCDB.TXT field 21 (EXACT_CMP_SY) |
| SX | Mixed-case component synonym with expanded abbreviations: CODE = MTHU#, assigned during Metathesaurus source processing. Same as code for respective CN, CX and SN as applicable. STR = Expanded form of LOINCDB.TXT field 21 (EXACT_CMP_SY). |
| XM | Cross-mapping set: This data is added during Metathesaurus source processing |
Attributes
)| ATN [Description] | Origin |
|---|---|
| COPYRIGHT | LOINCDB.TXT field 43 (EXTERNAL_COPYRIGHT_NOTICE) |
| CURATED_RANGE_AND_UNITS | LOINCDB.TXT field 49 (CURATED_RANGE_AND_UNITS) |
| DEFINITION_DESCRIPTION_HELP | LOINCDB.TXT field 51 |
| DOCUMENT_SECTION | LOINCDB.TXT field 50 |
| EXAMPLE_UCUM_UNITS | LOINCDB.TXT field 52 |
| EXAMPLE_UNITS | LOINCDB.TXT field 44 |
| FROMRSAB | This data is added during Metathesaurus source processing |
| FROMVSAB | This data is added during Metathesaurus source processing |
| HL7_FIELD_SUBFIELD | LOINCDB.TXT field 42 |
| HL7_V2_DATATYPE | LOINCDB.TXT field 47 |
| HL7_V3_DATATYPE | LOINCDB.TXT field 48 |
| INPC_PERCENTAGE | LOINCDB.TXT field 45 |
| LAL [Answerlist] | LOINCDB.TXT field 14 (ANSWERLIST) |
| LCA [ACSSYM] | LOINCDB.TXT field 27 (ACSSYM) |
| LCB [Chemical base name] | LOINCDB.TXT field 28 (BASE_NAME) |
| LCD [CDISC common tests] | LOINCDB.TXT field 41 |
| LCL [Class] | LOINCDB.TXT field 9 |
| LCN [Classtype] | LOINCDB.TXT field 23 |
| LCS [Status] | LOINCDB.TXT field 15 |
| LCT [Change type] | LOINCDB.TXT field 12 |
| LEA [Example answers] | LOINCDB.TXT field 26 |
| LFO [Formula] | LOINCDB.TXT field 24 |
| LLR [Date last revised] | LOINCDB.TXT field 11 |
| LMM [Molecular weights] | LOINCDB.TXT field 22 |
| LMP [Map to code] | LOINCDB.TXT field 16 |
| LNC [NAACCR ID] | LOINCDB.TXT field 30 |
| LNE [Code table] | LOINCDB.TXT field 31 |
| 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 40 |
| LPL [Panel elements] | LOINCDB.TXT field 33 |
| LQS [Survey question source] | LOINCDB.TXT field 35 |
| LQT [Survey question text] | LOINCDB.TXT field 34 |
| LRF [Reference] | LOINCDB.TXT field 20 |
| LRN [Related name] | LOINCDB.TXT field 8 |
| LRN2 [Related names 2] | LOINCDB.TXT field 38 |
| LSP [Species] | LOINCDB.TXT field 25 |
| LSU [Submitted units] | LOINCDB.TXT field 37 |
| LUR [Units required] | LOINCDB.TXT field 36 |
| 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_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 13 LOINC_PARTS field 4 (DISPLAY_NAME) |
| 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 |
Relationships
)| REL | RELA inverse_RELA | Origin |
|---|---|---|
| CHD PAR SIB |
The hierarchy is extracted from:
|
|
| RO | analyzed_by analyzes |
Connects LS to LN or LO |
| RO | associated_with | Connects CN to LO or LX 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 LX 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 LX 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 12 |
| 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: SX <--> SN; CN <--> CX; LN <--> LX; OLX <--> LO; OSN <--> LN; OOSN <--> LO |
