HL7-XML encoding

This is a basic XML representation of an HL7 message where XML elements represent HL7 messages constructs like segments, fields and components.

Example:

<ADT_A01>
    <MSH>
        <MSH.1>|</MSH.1>
        <MSH.2>^~&amp;</MSH.2>
        <MSH.3>
            <MSH.3.1>MegaReg</MSH.3.1>
        </MSH.3>
        <MSH.4>
            <MSH.4.1>XYZHospC</MSH.4.1>
        </MSH.4>
        <MSH.5>
            <MSH.5.1>SuperOE</MSH.5.1>
        </MSH.5>
        <MSH.6>
            <MSH.6.1>XYZImgCtr</MSH.6.1>
        </MSH.6>
        <MSH.7>
            <MSH.7.1>20060529090131-0500</MSH.7.1>
        </MSH.7>
        <MSH.9>
            <MSH.9.1>ADT</MSH.9.1>
            <MSH.9.2>A01</MSH.9.2>
            <MSH.9.3>ADT_A01</MSH.9.3>
        </MSH.9>
        <MSH.10>
            <MSH.10.1>01052901</MSH.10.1>
        </MSH.10>
        <MSH.11>
            <MSH.11.1>P</MSH.11.1>
        </MSH.11>
        <MSH.12>
            <MSH.12.1>2.5 </MSH.12.1>
        </MSH.12>
    </MSH>
    <EVN>
        <EVN.2>
            <EVN.2.1>200605290901</EVN.2.1>
        </EVN.2>
        <EVN.6>
            <EVN.6.1>200605290900 PID</EVN.6.1>
        </EVN.6>
        <EVN.9>
            <EVN.9.1>56782445</EVN.9.1>
            <EVN.9.4>UAReg</EVN.9.4>
            <EVN.9.5>PI</EVN.9.5>
        </EVN.9>
        <EVN.11>
            <EVN.11.1>KLEINSAMPLE</EVN.11.1>
            <EVN.11.2>BARRY</EVN.11.2>
            <EVN.11.3>Q</EVN.11.3>
            <EVN.11.4>JR</EVN.11.4>
        </EVN.11>
        <EVN.13>
            <EVN.13.1>19620910</EVN.13.1>
        </EVN.13>
        <EVN.14>
            <EVN.14.1>M</EVN.14.1>
        </EVN.14>
        <EVN.16>
            <EVN.16.1>2028-9</EVN.16.1>
            <EVN.16.3>HL70005</EVN.16.3>
            <EVN.16.4>RA99113</EVN.16.4>
            <EVN.16.6>XYZ</EVN.16.6>
        </EVN.16>
        <EVN.17>
            <EVN.17.1>260 GOODWIN CREST DRIVE</EVN.17.1>
            <EVN.17.3>BIRMINGHAM</EVN.17.3>
            <EVN.17.4>AL</EVN.17.4>
            <EVN.17.5>35 209</EVN.17.5>
            <EVN.17.7>M~NICKELL’S PICKLES</EVN.17.7>
            <EVN.17.8>10000 W 100TH AVE</EVN.17.8>
            <EVN.17.9>BIRMINGHAM</EVN.17.9>
            <EVN.17.10>AL</EVN.17.10>
            <EVN.17.11>35200</EVN.17.11>
            <EVN.17.13>O </EVN.17.13>
        </EVN.17>
        <EVN.24>
            <EVN.24.1>0105I30001</EVN.24.1>
            <EVN.24.2/>
            <EVN.24.3/>
            <EVN.24.4>99DEF</EVN.24.4>
            <EVN.24.5>AN </EVN.24.5>
        </EVN.24>
    </EVN>
    <PV1>
        <PV1.2>
            <PV1.2.1>I</PV1.2.1>
        </PV1.2>
        <PV1.3>
            <PV1.3.1>W</PV1.3.1>
            <PV1.3.2>389</PV1.3.2>
            <PV1.3.3>1</PV1.3.3>
            <PV1.3.4>UABH</PV1.3.4>
            <PV1.3.8>3</PV1.3.8>
        </PV1.3>
        <PV1.7>
            <PV1.7.1>12345</PV1.7.1>
            <PV1.7.2>MORGAN</PV1.7.2>
            <PV1.7.3>REX</PV1.7.3>
            <PV1.7.4>J</PV1.7.4>
            <PV1.7.7>MD</PV1.7.7>
            <PV1.7.8>0010</PV1.7.8>
            <PV1.7.9>UAMC</PV1.7.9>
            <PV1.7.10>L</PV1.7.10>
        </PV1.7>
        <PV1.9>
            <PV1.9.1>678 90</PV1.9.1>
            <PV1.9.2>GRAINGER</PV1.9.2>
            <PV1.9.3>LUCY</PV1.9.3>
            <PV1.9.4>X</PV1.9.4>
            <PV1.9.7>MD</PV1.9.7>
            <PV1.9.8>0010</PV1.9.8>
            <PV1.9.9>UAMC</PV1.9.9>
            <PV1.9.10>L</PV1.9.10>
        </PV1.9>
        <PV1.10>
            <PV1.10.1>MED</PV1.10.1>
        </PV1.10>
        <PV1.15>
            <PV1.15.1>A0</PV1.15.1>
        </PV1.15>
        <PV1.17>
            <PV1.17.1>13579</PV1.17.1>
            <PV1.17.2>POTTER</PV1.17.2>
            <PV1.17.3>SHER MAN</PV1.17.3>
            <PV1.17.4>T</PV1.17.4>
            <PV1.17.7>MD</PV1.17.7>
            <PV1.17.8>0010</PV1.17.8>
            <PV1.17.9>UAMC</PV1.17.9>
            <PV1.17.10>L</PV1.17.10>
        </PV1.17>
        <PV1.44>
            <PV1.44.1>200605290900 </PV1.44.1>
        </PV1.44>
    </PV1>
    <OBX>
        <OBX.1>
            <OBX.1.1>1</OBX.1.1>
        </OBX.1>
        <OBX.2>
            <OBX.2.1>NM</OBX.2.1>
        </OBX.2>
        <OBX.3>
            <OBX.3.2>Body Height</OBX.3.2>
        </OBX.3>
        <OBX.5>
            <OBX.5.1>1.80</OBX.5.1>
        </OBX.5>
        <OBX.6>
            <OBX.6.1>m</OBX.6.1>
            <OBX.6.2>Meter</OBX.6.2>
            <OBX.6.3>ISO+</OBX.6.3>
        </OBX.6>
        <OBX.11>
            <OBX.11.1>F </OBX.11.1>
        </OBX.11>
    </OBX>
    <OBX>
        <OBX.1>
            <OBX.1.1>2</OBX.1.1>
        </OBX.1>
        <OBX.2>
            <OBX.2.1>NM</OBX.2.1>
        </OBX.2>
        <OBX.3>
            <OBX.3.2>Body Weight</OBX.3.2>
        </OBX.3>
        <OBX.5>
            <OBX.5.1>79</OBX.5.1>
        </OBX.5>
        <OBX.6>
            <OBX.6.1>kg</OBX.6.1>
            <OBX.6.2>Kilogram</OBX.6.2>
            <OBX.6.3>ISO+</OBX.6.3>
        </OBX.6>
        <OBX.11>
            <OBX.11.1>F AL1</OBX.11.1>
        </OBX.11>
        <OBX.12>
            <OBX.12.1>1</OBX.12.1>
        </OBX.12>
        <OBX.13/>
        <OBX.14>
            <OBX.14.2>ASPIRIN DG1</OBX.14.2>
        </OBX.14>
        <OBX.15>
            <OBX.15.1>1</OBX.15.1>
        </OBX.15>
        <OBX.17>
            <OBX.17.1>786.50</OBX.17.1>
            <OBX.17.2>CHEST PAIN, UNSPECIFIED</OBX.17.2>
            <OBX.17.3>I9</OBX.17.3>
        </OBX.17>
        <OBX.20>
            <OBX.20.1>A</OBX.20.1>
        </OBX.20>
    </OBX>
</ADT_A01>

The other allowed encoding is HL7-ER7.