We have imported a CLinical Document Architecture v2 (CDA2) schema to create CDA2 content using %XML.Adaptor classes
Schema
https://gazelle.ihe.net/XSD/HL7/CDA/POCD_MT000040.xsd
One of the item is "observation " with value property
Class Region.ITXX.Utility.COMMON.CDA2.Schema.POCDMT000040.Observation Extends (%RegisteredObject, %XML.Adaptor) [ CompileAfter = (Region.ITXX.Utility.COMMON.CDA2.Schema.ActClassObservation, Region.ITXX.Utility.COMMON.CDA2.Schema.NullFlavor, Region.ITXX.Utility.COMMON.CDA2.Schema.bl, Region.ITXX.Utility.COMMON.CDA2.Schema.xActMoodDocumentObservation), Procedur