<table width="700pt"> <body> <tr> <td> <H3>Special Instructions</H3>   <p>The message generated by the Patient Demographic Consumer must conform to the HITSP Constraints to the message content.  <p><strong>Note:</strong> HITSP T23 applies constraints only to the QPD segment of the PDQ Query Message. Additional content constraints are associated with the PDQ Response Message contents. A spreadsheet containing the full list of constraints associated with T23, can be found at <strong><a href="http://xreg2.nist.gov/hit-testing/Documents/Constraints/T23_PDQ_Constraints">HITSP T23 Constraints</a></strong>.</p>    <H3>Evaluation</H3>  <p>In order to verify the test, the monitor will: <li>Request the T23 Patient Demographic Consumer to show the HL7 PDQ Query message transmitted to the Patient Demographic Source <li>Validate that the HL7 Query message content conforms to the HITSP specified constraints </p>  <H3>Description</H3> <p>The goal of this test is to verify that the messages generated by the Patient Identity Consumer conform to the HITSP Constraints. </p> <p> The HITSP T23 constrains the PDQ Query QPD Segment as follows: <li>QDP-2	  - Must contain a unique value from the Patient Demographics Consumer that identifies each specific query message; an incrementing number may be used if desired <li>QPD-3.4.2 - Must be an ISO object identifier (OID) and QPD-3.4.3 must contain 'ISO' <li>QPD-8.4.3 - Must be an ISO object identifier (OID) and QPD-8.4.3 must contain 'ISO' <li>QPD-3.1    - The IHE Pediatric Demographic Option cited for optional constraint by the Interoperability Specification. Testing conformance to the IHE tests associated with this option is encouraged, but not required  <p>The HITSP T23 does not further constrain the PDQ Query MSH or RCP segments   <h3><a id='6'>Additional Resources</a></h3> <p>The HISTP Interoperability Specifications and related documents can be freely obtained from <strong><a href="http://hitsp.org">www.hitsp.org</a></strong>.   </font> </td> </tr> </body> <table width="700pt"> 