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- Enter Original Message MSH-3(Sending Application) into ACK MSH-5(Receiving Application). (Blue)
- Enter Original Message MSH-4(Sending Facility) into ACK MSH-6(Receiving Facility). (Red)
- Fill with software generating ACK into ACK MSH-3(Sending Application). (Green)
- Enter Original Message MSH-6(Receiving Facility) into ACK MSH-4(Sending Facility). (Orange)
- Enter Original Message MSH-11(Processing ID) into ACK MSH-11(Processing ID). (Purple)
- Enter Original Message MSH-10(Message control ID) into ACK MSA-2(Message control ID). (Gold)
- ACK MSH-10(Message control ID) should be unique and unrelated to Original Message MSH-10(Message control ID). (Maroon)
MSA segment details can be found here: https://confluence.hl7australia.com/display/OOADRM20181/2+Patient+Administration+for+Pathology#id-2PatientAdministrationforPathology-2.1.8MSA-messageacknowledgmentsegment
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