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Introduction

This document is a section of the LexEVS 5.x Programmer's Guide.

The LexEVS Data Grid Service is a standard caGrid Data service based on the LexEVS 2009 Model.

For complete documentation on caGrid Data Services, see caGrid Data Service Documentation.

Querying The System

To query the LexEVS Data Grid Service, use the standard caGrid CQL query method to compose queries. See caGrid Data Service API Documentation for more information.

Example LexEVS queries follow.

Query for a Concept with a Specific Code

• Example: Concept: C12345

  Include Page
  DataGridQueryByCode Snippet DataGridQueryByCode Snippet

Query for a Concept with a Specific Presentation Text

• Example: A concept with a namespace 'SNOMED Clinical Terms' that contains a Presentation equal to 'Heart'

  Include Page
  DataGridQueryByPresentationText Snippet DataGridQueryByPresentationText Snippet

Restrict Results to Specific Attributes

• Example: Retrieve all of the 'localIds' of any 'SupportedAssociation' in the system.

  Include Page
  DataGridQueryRestrictByAttributes Snippet DataGridQueryRestrictByAttributes Snippet

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