Value Set Definition:

LOINC {
   {
      COMPONENT not ( containing the word "panel" OR starting with "can pronounce" )
      CLASS in {CYTO, HEM/BC, HL7.CYTOGEN, HL7.GENETICS, MOLPATH, MOLPATH.*, PATH}
      STATUS in {ACTIVE}  
      CLASSTYPE in {1}              
     ORDER_OBS in {Observation, Both}
   }
}