Role of defining characteristics

contribute the hierarchical type based aspect of a definition. This is augmented by that represent the values of a range of relevant attributes. Depending on the nature of the these may include including etiology, topography, method, etc.

The attributes that can be applied depend on the  of the  . For example, a procedure may have a method, and a disorder may have an etiology, but a procedure cannot have an etiology, and disorder cannot have a method. using a particular attribute will be applied consistently to all to which it is relevant. Note that this design principle may not be fully realized for all attributes in each release.

Representation of defining characteristics

are represented as . The fields are used as follows:

In each release the supported for every are distributed in the . The supported are identified by concept that are  of   . The list of supported defining attributes is provided in Defining Attributes by Hierarchy and Domain.

Defining characteristics applied to an example concept

 

 

Many subtypes of are not subtypes of .

  • There are no additional characteristics available to fully define .

 

 

 

A with is not necessarily equivalent to or a subtype of    .

  • For example, has but is not an .

 

 

 

Any with is equivalent to or a subtype of

 

 

 

Any with is equivalent to or a subtype of .

 

 

 

Any with is equivalent to or a subtype of .

 

 

 

A is not necessarily equivalent to or a subtype of .

  • Additional characteristics would be required to fully define

 

 

 

 

 

Any with is equivalent to or a subtype of .

 

 

 

 

 

Any with is equivalent to or a subtype of .