Precoordinated expressions consist of a single concept single
identifier, followed optionally by any term that is associated with
that conceptthat . While the use of a term is not mandated, it is often preferable to include
| Gloss |
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| PreSpace | false |
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| t | preferred term |
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s from an appropriate dialect within the expressions to improve the human-readability of the expression. For example:
diabetes | Diabetes mellitus| | | ShowFormat | inline |
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|
As mentioned, the syntax does not require a term to be used with each concept identifier, so the following is also a
valid expression: 73211009 valid : | Concept |
|---|
| t | 73211009|diabetes mellitus| |
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|