Segment MSA in FHIR

How segment MSA (Message Acknowledgment) becomes FHIR R4 resources, from the HL7 Version 2 to FHIR guide.

HL7 v2 definition
Definition of MSA in HL7 v2 2.8
Maps
MessageHeader

To MessageHeader2 rows

HL7 v2 sourcev2 typeFHIR elementFHIR typeConditions and notes
MSA-1Acknowledgment Code
IDresponse.code
MSA-2Message Control Id
STresponse.identifier