Searching a Read Code Chapter and Excluding One Section

You may want to run a search to find all patients excluding one particular group.

For example, patients with records in Read Chapter E Mental Disorders, but exclude those in E3 Mental Retardation.

1. Add Entity - Medical History.
2. Highlight Medical History, and select Selections.
3. Select Read code for General Entity, then Read Select, chapter E.
4. Select Add New.
5. Select Read Select, chapter E3 and tick Not Equal.

   

6. Add any further requirements and run the search.