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Unified Medical Language System® (UMLS®)

2012AA Metathesaurus HCPCS Hierarchical Terms Source Information

Counts

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Term Type Description Count (MRCONSO.RRF)
HT Hierarchical term 343

Notes

  • A term type indicates the role an atom plays in its source
  • An atom is the smallest unit of naming in a source; that is, a specific string with specific code values and identifiers from a specific source.
  • Every atom has a separate row in MRCONSO.RRF. Every atom is assigned a term type.
  • Term types are assigned based on source documentation or NLM understanding of the source.
  • Sample data are provided for every term type in the source (see below).
  • See Metathesaurus Documentation for a list of all term type abbreviations and their full names.
  • See Metathesaurus Documentation for a list of sources and their associated term types, listed in default order of precedence.
  • See Section 2.3 of the UMLS Reference Manual for more information on terms and term types in the UMLS Metathesaurus.

Sample Data

HT

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CUI AUI LUI SUI SCUI CODE STR
C0851270 A13300085 L1702378 S1919515 MTHU000316 MTHU000316 HCPCS Level I Preferred Terms, Obsolete
C0919279 A13300770 L1776219 S2071440 Level 1: A0000-A9999 Level 1: A0000-A9999 A Codes
C0441134 A13299348 L0774654 S1801343 Level 3: A4300-A4306 Level 3: A4300-A4306 Vascular Catheters
C0812882 A13295817 L1506618 S1801693 Level 3: A4611-A4629 Level 3: A4611-A4629 Supplies for Oxygen and Related Respiratory Equipment
C1971535 A13297257 L0871622 S8012288 Level 3: A4648-A4652 Level 3: A4648-A4652 Miscellaneous Surgical Supplies
C0812886 A13299349 L1506175 S1800433 Level 3: A5051-A5093 Level 3: A5051-A5093 Additional Ostomy Supplies
C0812889 A13297258 L1506551 S1801569 Level 3: A5500-A5513 Level 3: A5500-A5513 Diabetic Shoes, Fitting, and Modifications
C0812894 A13297926 L1506612 S1801682 Level 2: B4034-B4162 Level 2: B4034-B4162 Enteral Formulae and Enteral Medical Supplies
C0812896 A13300772 L1506613 S1801683 Level 2: B9000-B9999 Level 2: B9000-B9999 Enteral and Parenteral Pumps