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  1. RxNorm Technical Documentation 
    https://www.nlm.nih.gov/.../docs/2012/rxnorm_doco_full_2012-3.html
    ... practices is documented here. 11.4 Uses of Concept and Atom Identifiers In RxNorm, each RXCUI (concept) is linked ... PT|75368007|4-Hydroxyphenylpyruvate dioxygenase|||| 12.5 Simple Concept and Atom Attributes (File = RXNSAT.RRF) This file follows the ...
  2. RxNorm Technical Documentation 
    https://www.nlm.nih.gov/research/umls/rxnorm/docs/techdoc.html
    ... practices is documented here. 11.4 Uses of Concept and Atom Identifiers In RxNorm, each RXCUI (concept) is linked ... PT|75368007|4-Hydroxyphenylpyruvate dioxygenase|||| 12.5 Simple Concept and Atom Attributes (File = RXNSAT.RRF) This file follows the ...
  3. RxNorm Technical Documentation 
    https://www.nlm.nih.gov/.../docs/2018/rxnorm_doco_full_2018-1.html
    ... practices is documented here. 11.4 Uses of Concept and Atom Identifiers In RxNorm, each RXCUI (concept) is linked ... PT|75368007|4-Hydroxyphenylpyruvate dioxygenase|||| 12.5 Simple Concept and Atom Attributes (File = RXNSAT.RRF) This file follows the ...
  4. RxNorm Documentation 
    https://www.nlm.nih.gov/.../docs/2010/rxnorm_doco_full_2010-1.html
    ... exactly one row in this table for each concept, atom, or relationship attribute that does not have a ... one row in this table for each OCD concept, atom, or relationship attribute that does not have a ...
  5. pptRachel Kleinsorge 
    https://www.nlm.nih.gov/.../presentations/AMIA-2007-T12-final.ppt
    ... hierarchical relationships Semantic categorization Understanding the Metathesaurus Sources Concepts Atoms Term Types Relationships Attributes Mappings Files/tables Uses ...
  6. UMLS Metathesaurus - RXNORM (RXNORM) - Source Representation 
    https://www.nlm.nih.gov/.../current/RXNORM/sourcerepresentation.html
    ... CUI') MRREL.STYPE1 4 REL Relationship of second concept or atom to the first concept or atom MRREL.REL 5 RXCUI2 Unique identifier of second ... that contains the identifier used for the second concept or second atom in source of the relationship (either 'AUI' or ' ...
  7. Retrieving UMLS Atoms 
    https://documentation.uts.nlm.nih.gov/rest/atoms/index.html
    ... the default preferred atom belonging to SNOMED CT concept 111541001 Atom /content/current/AUI/A8345234 Retrieve information about AUI ... gov/rest/content/2016AA/source/ICD9CM/386.11", "concept" : ... "suppressible" : "false", "obsolete" : "false", "rootSource" : "SNOMEDCT_ ...
  8. UMLS - Glossary 
    https://www.nlm.nih.gov/research/umls/new_users/glossary.html
    ... source descriptor is a source asserted-collection of concepts (or atoms if there is no concept level organization) that are considered to be closely ...
  9. UMLS Metathesaurus - RXNORM (RXNORM) - Statistics 
    https://www.nlm.nih.gov/.../current/RXNORM/stats.html
    ... 54 Definition Count Count 0 Source Overlap Source # Concepts Sharing Atom/# Total Concepts Percentage Distribution MMSL 38846/220161 17.6 MTHSPL ...
  10. RxNorm Overview 
    https://www.nlm.nih.gov/research/umls/rxnorm/overview.html
    ... plus these additional characteristics. Each atom within a concept receives an atom unique identifier, an RXAUI. NLM assigns the RXCUI ' ... are additional pieces of information associated with a concept or an atom. For example, when source providers include NDCs in ...
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