This value set includes codes based on the following rules:

• Include these codes as defined in http://dicom.nema.org/resources/ontology/DCM

  Code	Display	Definition
  121411	Most recent value chosen	Observation value is the recently obtained, and has been selected for further processing or use.
  121412	Mean value chosen	Observation value is the mean of several measurements, and has been selected for further processing or use.
  121410	User chosen value	Observation value selected by user for further processing or use, or as most representative.

• Include these codes as defined in http://snomed.info/sct

  Code	Display
  255605001	Minimum
  56851009	Maximum