- iOS 10.0+
- watchOS 3.0+
Each Clinical Document Architecture (CDA) sample stores a single XML document. The sample’s
document property contains an
HKCDADocument object that represents the XML data.
Document samples are immutable. HealthKit assigns the document’s properties when the sample is created. They cannot change. If you need to update a document in HealthKit, create a new document sample with the updated CDA XML data.