Add geo-coordinates in the Address

[jgsuess]

Feedback / Comments:
Why not add the coordinates in the Address (Region, Province, Barangay)? This will be useful for analytics.

Submitter: Noel Del Castillo (SeeYouDoc)

[jgsuess]

Notes:
For consideration.

[jgsuess]

Unnamed: 6:
For discussion in DH TWG

[johnscarter]

The NZ Address profile adds a geocode extension. See https://fhir.org.nz/ig/base/StructureDefinition-NzAddress.html

[jgsuess]

Sounds good but need to ensure that the address structure actually conforms to geolocation. Not an easy thing to standardize and the input side would also be challenging.