Page History

Simple expression diagram

Expression diagrams are the most general form of diagram, which represent a SNOMED CT expression as defined in the SNOMED CT Compositional Grammar. Diagrams representing expressions may exist on their own, or be part of a larger diagram representing a concept definition or relation between two expressions.

In its simplest form this may simply be a single concept

Diagram of the single concept  INLINE95617006 | Neonatal cyanosis | 

In more complex scenarios diagrams may represent coordination of attribute types and concepts.

_Ref347406127Figure 4 Expression equivalentINLINEEquivalent as at the January 2012 SNOMED CT International release.*toINLINE95617006 | Neonatal cyanosis |

In all expressions other than a single concept value

...