All the classes that appear within the NHS data standards logical data model. Each class contains its nationally agreed definition, all of its attributes and all the relationships it has with other classes.

Attribute Definitions

All the attributes of the classes that appear within the NHS data standards logical data model. Each attribute contains its nationally agreed definition which may also include its agreed National Codes or classifications and a clickable 'data' tab, if a data element also exists for it.

Data Elements

Data elements which may be supported by an attribute definition i.e. the data element has the same name as an attribute, be a derived item which is derivable from attributes or only exists as a data element.

Where a data element is supported by an attribute definition, such as the national codes to be used in that data element exist in an attribute, then there will be a link to that attribute through a 'definition' tab.

Data elements are used in the completion of Datasets, CDS, Hospital Episode Statistics and Central Returns. The data element information comprises format and field length, Hospital Episode Statistics name if applicable, National Codes or classifications and useful notes clarifying the selected data element.

NHS Business Definitions

These contain the business rules for recording NHS activity and will be of particular relevance to NHS Information Professionals.