Table 1 Main sub-hierarchies of SNOMED CT. The metadata concepts sub-hierarchy (SNOMED CT Model Components) was not considered
Subhierarchy (Abbreviation) | Concepts | Distribution |
|---|---|---|
Clinical Finding (CF) | 100 893 | 33.57 % |
Procedure (PR) | 53 914 | 17.94 % |
Organism (OR) | 33 273 | 11.07 % |
Body Structure (BS) | 30 685 | 10.21 % |
Substance (SU) | 24 021 | 7.99 % |
Pharmaceutical/Biologic Product | 16 881 | 5.62 % |
Qualifier Value (QV) | 9 055 | 3.01 % |
Observable Entity (OE) | 8 307 | 2.76 % |
Social Context (SO) | 4 703 | 1.56 % |
Physical Object (PO) | 4 522 | 1.50 % |
Situation with Explicit Context (SI) | 3 695 | 1.23 % |
Event (EV) | 3 673 | 1.22 % |
Environment or Geogr. Location (EG) | 1 814 | 0.60 % |
Specimen (SN) | 1 447 | 0.48 % |
Staging and Scales (ST) | 1 309 | 0.44 % |
Special concept (SP) | 649 | 0.44 % |
Record Artifact (RA) | 227 | 0.22 % |
Physical Force (PF) | 171 | 0.08 % |