# Logical Record Architecture for Health and Social Care
## Discharge Summary Release 0.02

Contents
The content of this release is not comprehensive and is not fully validated and must not be used in live system implementations.
# Reference Model Class: SC.NT
This is implemented as described in ISO 21090. ## Specializes ## SC ## Attributes
Name | Data type | Occurs | Description
--- | --- | --- | ---
code | CD | 0..1 | In the use of the SC datatype as described above there are specific constraints that must be applied to the CD value of the SC.code attribute. In ISO 21090 there is already a constraint to have no originalText attribute. In the LRA the SC.code MUST not contain source mappings, the SC.code.codeSystemName MUST provide a identifier as a string consisting of a URL to a maintained accessible terminology service. The SC.code.codeSystemVersion and SC.code.code strings must act as extensions to that URL to derive the specific value as specified in SC.Value (e.g. SC.code.codeSystemName = â€œhttp://some.ehr.manufacturer/vocabserver/somevocabulary/â€ SC.code.codeSystemVersion = â€œv1â€, SC.code.code = â€œCode1234â€. Then the URI â€œhttp://some.ehr.manufacturer/vocabserver/somevocabulary/v1#Code1234â€ MUST resolve to SC.Value. - see http://www.w3.org/TR/2004/REC-rdf-concepts-20040210/#section-URI-Vocabulary for further examples.). At a most basic level this can be an stable HTML page which defines anchored elements for every entry in the local terminology.
## Constraints
Type | Name | Specification
--- | --- | ---
no translations | Invariant | inv: translation->isEmpty
## Reference Model Type ##