In a DITA publication, it is possible to remove topics from the table of contents while keeping them in the document.
To hide a topic from the table of contents, use the DITA attribute toc="no" in the DITA map.
Example
In the following example, we want to only show topic 1 and topic 3 in the table of contents:
<chapter>
<topicref href="topic_01_.xml"/>
<topicref href="topics_02.xml" toc="no"/>
<topicref href="topic_03.xml"/>
</chapter>
It is not possible to hide the first topic of a document.