Relation/CHD: Other application data, typically uninterpreted binary data (HL7 V2.3 and later)
Audio data (HL7 V2.3 and later)
Formatted text (HL7 V2.2 only)
Image data (HL7 V2.3 and later)
MIME multipart package
Non-scanned image (HL7 V2.2 only)
Scanned document (HL7 V2.2 only)
Scanned image (HL7 V2.2 only)
Machine readable text document (HL7 V2.3.1 and later)
Machine readable text document (HL7 V2.2 only)