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Unified Medical Language System (UMLS)

NANDA-I (NANDA-I) - Metathesaurus Representation


This page lists UMLS Metathesaurus data elements and traces them back to the specific source data that populates them.


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

VSAB: NANDA-I_2015-2017

Summary of Changes

The previous version of NANDA was NAN2004. Significant changes have been made to the file format and to Metathesaurus source processing.

SAB Change:
  • previous: RSAB = "NAN"
  • new: RSAB = "NANDA-I"
MRCONSO.RRF:
TTY changes:
  • previous: "RT" was assigned to atoms created by parsing instructions to further specify a diagnosis
  • new:"RT" is now assigned to atoms created from "Phrase"values
MRSAT.RRF:
Deprecated ATNs:
  • REF: References no longer provided
  • DEFCHARACTERISTICS, RELATEDFACTORS, RISKFACTORS: Now represented as atoms, with TTY = "RT."The RT atom has a relationship to its PT, based on the value of the DC/Ref/RiF field.
New ATNs:
  • DATE_CREATED
  • DATE_LAST_MODIFIED
  • SUBCATEGORY
MRREL.RRF
Deprecated REL/RELA: RO/<null>. These were created to connect PT and RT atoms

New REL|RELA/Inverse_RELA: The following relationships are now created based on the value of the DC/ReF/RiF field

  • RO|defining_characteristic_of/has_defining_characteristic
  • RO|related_factor_of/has_related_factor
  • RO|risk_factor_of/has_risk_factor

Source Provided Files:

File Name Description
2015-2017-NANDA-I_Eng_Def-and-Class_Dx.xlsx Data file

Identifiers:

Identifiers are assigned as follows:

CODE:
  • TTY = HC: Numeric value before ". " in "Class - Tax 2" field
  • TTY = HT:Numeric value before ". " in "Domain - Tax 2" field
  • TTY = PT: Diagnosis Code
  • TTY = RT: Phrase Code
SAUI: Not applicable
SCUI: Not applicable
SDUI: Not applicable

Atoms (MRCONSO):

Term Type Origin
HC CODE: Numeric value before ". " in "Class Tax 2" field
STR: Value of the "Class - Tax 2" field after the ". "
Suppress = "N"
HT CODE: Numeric value before ". " in "Domain - Tax 2" field
STR: Value of the "Domain - Tax 2" field after the ". "
Suppress = "N"
PT CODE: Diagnosis Code
STR: Diagnosis Label
Suppress = "N"
RT CODE: Phrase Code
STR: Current Phrase
Suppress = "N"


Attributes (MRSAT):

ATN Origin Notes
DATE_CREATED Original Year <YYYY> format
DATE_LAST_MODIFIED Revision Year May have multiple <YYYY> values
SUBCATEGORY Subcategory Indicates a subheading designated by the DC/ReF/RiF field. Attached to the RUI for the relationship between the PT and RT atoms.

Definitions (MRDEF):

Extracted from "Definition" field.


Relationships (MRREL); Hierarchy (MRHIER)


REL RELA
Inverse RELA
Origin
RO defining_characteristic_of
has_defining_characteristic
Connect PT to RTs; RELA assigned based on the value of the DC/ReF/RiF field.
RO related_factor_of
has_related_factor
Connect PT to RTs; RELA assigned based on the value of the DC/ReF/RiF field.
RO risk_factor_of
has_risk_factor
Connect PT to RTs; RELA assigned based on the value of the DC/ReF/RiF field.
CHD
PAR
(no RELA) Hierarchy, created based on the Domain, Class and Diagnosis
SIB (no RELA) Relationships between codes with the same parents.

Mappings (MRMAP):

No mappings are supplied for CDT.