This code system http://terminology.hl7.org/CodeSystem/location-physical-type defines the following codes:

Code	Display	Definition
si	Site	A collection of buildings or other locations such as a site or a campus.
bu	Building	Any Building or structure. This may contain rooms, corridors, wings, etc. It might not have walls, or a roof, but is considered a defined/allocated space.
wi	Wing	A Wing within a Building, this often contains levels, rooms and corridors.
wa	Ward	A Ward is a section of a medical facility that may contain rooms and other types of location.
lvl	Level	A Level in a multi-level Building/Structure.
co	Corridor	Any corridor within a Building, that may connect rooms.
ro	Room	A space that is allocated as a room, it may have walls/roof etc., but does not require these.
bd	Bed	A space that is allocated for sleeping/laying on. This is not the physical bed/trolley that may be moved about, but the space it may occupy.
ve	Vehicle	A means of transportation.
ho	House	A residential dwelling. Usually used to reference a location that a person/patient may reside.
ca	Cabinet	A container that can store goods, equipment, medications or other items.
rd	Road	A defined path to travel between 2 points that has a known name.
area	Area	A defined physical boundary of something, such as a flood risk zone, region, postcode
jdn	Jurisdiction	A wide scope that covers a conceptual domain, such as a Nation (Country wide community or Federal Government - e.g. Ministry of Health), Province or State (community or Government), Business (throughout the enterprise), Nation with a business scope of an agency (e.g. CDC, FDA etc.) or a Business segment (UK Pharmacy), not just an physical boundary