# text.div
Operation

# parameter[].documentation
The code that is to be located. If a code is provided, a system must be provided

# parameter[].documentation
The system for the code that is to be located

# parameter[].documentation
The requested language for display (see $expand.displayLanguage)

# parameter[].documentation
Supplements to take into account when performing the $lookup operation (R5).

# parameter[].documentation
A property that the client wishes to be returned in the output. If no properties are specified, the server chooses what to return. The following properties are defined for all code systems: url, name, version (code system info) and code information: display, definition, designation, parent and child, and for designations, lang.X where X is a designation language code. Some of the properties are returned explicit in named parameters (when the names match), and the rest (except for lang.X) in the property parameter group.