Mandatory

1. [Indicates with a value of "True" whether the inclusion of an attribute in an HMD and in the messages derived from that HMD is mandatory. The default is not mandatory, and use of mandatory inclusion in the RIM is deprecated. ( HL7V3.0 )]
   UMLS (HL7) C1554132
    

   Idea or Concept

   Relation/PAR: HL7DefinedRoseProperty
   
2. [The message element must appear every time the message is communicated and its value must not be null. This condition is subject to the rules of multiplicity and conditionality. If a non-null default value is defined for the element, a null value may be communicated. ( HL7V3.0 )]
   UMLS (HL7) C1619643
   
   Required - V2.x
    

   Idea or Concept

   Relation/PAR: HL7ConformanceInclusion