This example shows a coded enumeration Observation. Coded enumerations are used when the measurement itself is a code. In this case, the measurement is the meal context associated with a glucose measurement. There is a limited set of possible entries for this measurement, this one indicating after lunch or dinner. This measurement should contain a derived-from reference pointing to the measurement containing the glucose concentration. When this is absent, the associated Observation can only be determined by using the timestamp and the PHD and patient references.

Observation Gateway Device: Device: identifier = IEEE 11073 System Identifier: ec-de-3d-4e-58-53-2d-31,Bluetooth MAC address: Bluetooth Address as a device identifier#3d-4e-58-53-2d-31,Ethernet MAC address: Ethernet MAC Address as a device identifier#3d-4e-58-53-2d-35; type = Application Hosting Device, a.k.a. PHG

Coincident Timestamp Reference: Observation Absolute time

identifier: http://hl7.org/fhir/uv/phd/StructureDefinition/PhdBaseObservation/00601900010E9234-sisansarahId-urn:oid:2.999.1.2.3.4.5.6.7.8.10-8417864-20170602150227.00

status: Final

category: PHD generated Observation

code: Meal context

subject: Sisansarah Lorianthah Piggy (no stated gender), DoB Unknown ( Medical record number: sisansarahId)

effective: 2017-06-02 15:02:35-0400

value: After lunch/dinner

device: Device: identifier = IEEE 11073 System Identifier: 00-60-19-00-01-0E-92-34,Bluetooth MAC address: Bluetooth Address as a device identifier#F4-5E-AB-A8-08-32; manufacturer = Diabetes Care; serialNumber = 20130200002A; modelNumber = Gluc-23; type = Simple PHD