            <p:outputLabel value="#{b.referenceBill.deptId}(opd)" rendered="#{b.patientEncounter eq null}"/>
                    <p:outputLabel value="#{b.patientEncounter.bhtNo}(bht)" rendered="#{b.patientEncounter ne null}"/>
                </p:column>                                    
                <p:column headerText="Patient Name" style="width: 40%;">
                    <p:outputLabel value="#{b.referenceBill.patient.person.name}" rendered="#{b.patientEncounter eq null}"/>
                    <p