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<h1 id="title-heading" class="pagetitle"> <span id="title-text">HL7 Fill Empty Fields</span> </h1>
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<p><span class="confluence-embedded-file-wrapper"><img class="confluence-embedded-image" src="attachments/133163301/133163302.png" data-image-src="attachments/133163301/133163302.png" data-unresolved-comment-count="0" data-linked-resource-id="133163302" data-linked-resource-version="1" data-linked-resource-type="attachment" data-linked-resource-default-alias="icon fill empty fields.png" data-base-url="https://docs.rhapsody.health" data-linked-resource-content-type="image/png" data-linked-resource-container-id="133163301" data-linked-resource-container-version="1"></span></p>
<p>The <strong>HL7 Fill Empty Fields</strong> filter is used to populate empty fields in an HL7 message with the specified string or Rhapsody variable.</p>
<p>When processing messages, Rhapsody will normally strip empty fields from a message when they are not required by HL7. The HL7 Fill Empty Fields filter is used to populate such fields with a dummy value before the message is processed. Once processing is complete, the Search and Replace filter can be used to replace the dummy value with <nothing> to restore affected fields to their original, empty state.</p>
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<p>If using this filter, the <code>.s3d</code> definition file must be changed so that none of the fields are of the number type, otherwise multiple errors will result.</p>
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<h2 id="HL7FillEmptyFields-ConfigurationProperties">Configuration Properties</h2>
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<th class="confluenceTh"><p>Property</p></th>
<th class="confluenceTh"><p>Description</p></th>
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<td class="confluenceTd"><p>Empty Field Value</p></td>
<td class="confluenceTd"><p>The string used to populate empty fields.</p><p>Refer to <a href="Rhapsody-Variables_133163434.html">Rhapsody Variables</a> for details on how to create a Rhapsody variables to set this configuration property.</p></td>
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