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Unified Medical Language System® (UMLS®)

2012AA Healthcare Common Procedure Coding System Source Information


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Source Number of shared concepts
out of 5751 from HCPCS2012
Percentage Overlap
MEDCIN3_2011_12_15 85 1.5
CHV2011_02 69 1.2
UMD2012 55 1
SNOMEDCT_2012_01_31 55 1
SCTSPA_2011_10_31 55 1


  • Source overlap provides a high level comparison of content and meaning between the reported source and other sources in the Metathesaurus.
  • The report displays source overlap of 1% or greater.
  • Number of shared concepts: number of concepts that contain at least one atom from each of two compared sources.
  • Percentage Overlap: percentage of shared concepts relative to the total number of concepts for this source.