National Cancer Institute Metathesaurus (NCIm) concept unique identifier (CUI) code mapping. (A) Screen copy of NCIm homepage. (B) Example CUI describing the term ovary. (C) List of sources (standards) that have the term ovary mapped to NCIm. (D) Mapping of six valid values in the germ cell tumor data model onto NCIm terms, CUIs, semantic types, and definitions according to the NCI Thesaurus (NCIt). AOD, Alcohol and Other Drug Thesaurus; CDISC, Clinical Data Interchange Standards Consortium; CSP, Computer Retrieval of Information on Scientific Projects (CRISP) Thesaurus; FMA, Foundational Model of Anatomy Ontology; ICDO, International Classification of Disease for Oncology; LNC, Logical Observation Identifiers Names and Codes; MDBCAC, Mitelman Database of Chromosome Aberrations in Cancer; MSH, Medical Subject Headings; MTH, Unified Medical Language System (UMLS) Metathesaurus; NCI-GLOSS, NCI Dictionary of Cancer Terms.