...
<?xml version="1.0" encoding="UTF-8"?>
<singlePatient xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:noNamespaceSchemaLocation="./iso-21090-datatypes.xsd">
<observations>
<observationCode code="439401001"
codeSystem="2.16.840.1.113883.6.96"
codeSystemName="SNOMED">
<displayName value = "Diagnosis" />
</observationCode>
<dateTime value = "20201017" />
<value xsi:type = "CD" code="39579001"
codeSystem="2.16.840.1.113883.6.96"
codeSystemName="SNOMED">
<displayName value = "Anaphylaxisanaphylaxis" />
</value>
</observations>
<observations>
<observationCode code="439401001"
codeSystem="2.16.840.1.113883.6.96"
codeSystemName="SNOMED">
<displayName value = "Diagnosis" />
</observationCode>
<dateTime value = "20201017" />
<value xsi:type = "CD" code="195951007"
codeSystem="2.16.840.1.113883.6.96"
codeSystemName="SNOMED">
<displayName value = " Acute exacerbation of COPD" />
</value>
</observations>
<observations>
<observationCode code="439401001"
codeSystem="2.16.840.1.113883.6.96"
codeSystemName="SNOMED">
<displayName value = "Diagnosis" />
</observationCode>
<dateTime value = "20201017" />
<value xsi:type = "CD" code="400047006"
codeSystem="2.16.840.1.113883.6.96"
codeSystemName="SNOMED">
<displayName value = " Peripheral vascular disease" />
</value>
</observations>
<observations>
<observationCode code="439401001"
codeSystem="2.16.840.1.113883.6.96"
codeSystemName="SNOMED">
<displayName value = "Diagnosis" />
</observationCode>
<dateTime value = "20130217" />
<value xsi:type = "CD" code="44054006"
codeSystem="2.16.840.1.113883.6.96"
codeSystemName="SNOMED">
<displayName value = "Diabetes mellitus type II" />
</value>
</observations>
</singlePatient>
...