1.0 17/07/2002 Proposal Message acknowledgment This indicates if an acknowledgment is requested for the message. That string is placed as the value of the element CD of the element ACKNOWLEDGMENT. The Scheme used is specified in the attribute 'S' of the element CD of the element ACKNOWLEDGMENT. The Version of the Scheme used is specified in the attribute 'SV' of the element CD of the element ACKNOWLEDGMENT. National code - related to HL7 V3 AcknowledgementType class CD-ACKNOWLEDGMENT 1.0 always Always send an acknowledgement 10126 onerror Send an acknowledgement for error/reject conditions only 10128 never Never send an acknowledgement 10127 onsuccess Send an acknowledgement for successful completion only 10129 <header><acknowledgment><cd S="CD-ACKNOWLEDGMENT" SV="1.0">never</cd></acknowledgment></header> This means that the sender does not expect any acknowledgment.