Base StructureDefinition for Address Type: An address expressed using postal conventions (as opposed to GPS or other location definition formats). This data type may be used to convey addresses for use in delivering mail as well as for visiting locations which might not be valid for mail delivery. There are a variety of postal address formats defined around the world.

Address
use
home | work | temp | old | billing - purpose of this address
type
postal | physical | both
line
Street name, number, direction & P.O. Box etc.
city
Name of city, town etc.
district
District name (aka county)
state
Sub-unit of country (abbreviations ok)
postalCode
Postal code for area
country
Country (e.g. can be ISO 3166 2 or 3 letter code)
period
Time period when address was/is in use