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Unified Medical Language System® (UMLS®)

2012AA ICD-10-PCS Source Information


This information is intended to provide users with additional details on the representation of specific vocabulary sources in the Metathesaurus. The information is provided on two pages:

  1. Source Representation: This page lists specific source data elements and provides information on their representation in the UMLS Metathesaurus.
  2. Metathesaurus Representation: This page lists UMLS Metathesaurus data elements and traces them back to the specific source data that populates them.