app/models/qdm/attributes/identifier.rb in cqm-models-4.1.1 vs app/models/qdm/attributes/identifier.rb in cqm-models-4.2.0

@@ -3,7 +3,9 @@
   class Identifier < Attribute
     include Mongoid::Document
     field :namingSystem, type: String
     field :value, type: String
     field :qdmVersion, type: String, default: '5.6'
+
+    validates_uniqueness_of :value, conditions: -> { where(namingSystem: CQM::Provider::NPI_OID) }
   end
 end