-	Specifies the e-Prescription (eRx) transaction type using Values: eRxRequest, eRxCancellation.
-	Based on this Type certain optional elements in the transaction may become mandatory.
-	Fields mandated based on type can be found in the Validation Rules table.

<xs:simpleType name="PrescriptionType">
    <xs:annotation>
        <xs:documentation>
        -	Specifies the e-Prescription (eRx) transaction type using Values: eRxRequest, eRxCancellation.
        -	Based on this Type certain optional elements in the transaction may become mandatory.
        -	Fields mandated based on type can be found in the Validation Rules table.
      </xs:documentation>
    </xs:annotation>
    <xs:restriction base="xs:string">
        <xs:enumeration value="eRxRequest" />
        <xs:enumeration value="eRxCancellation" />
    </xs:restriction>
</xs:simpleType>