Transmission Intermediaries Reference Identification qualifier / Identifier Billing Provider Name Identification Code Qualifier / ISA03 Authorization Information Qualifier / Drug Quantity Date Time Qualifier / Drug Identification Product/Service ID Qualifier National Drug Code Drug Quantity Quantity N4 Page / Identification qualifier / REF01 Reference Identification qualifier / Subscriber Name Identification Code Qualifier / ID Qualifier / NM103 NM108 NM109 Payer Name Payer Name Payer Qualifier / Code qualifier / /