The & character is normally meant to be the sub-sub-composite delimiter. For more information, see HL7 Delimiter Characters. Occasionally though there are some non-conforming implementations of HL7 where the & character is not supported, yet the application data contains unescaped copies of the & character. Normally these should be represented using \T\. See Delimiter Escape Sequences for more information.

To fix this:

• Click Chameleon > Options. The Options window appears.

Options Window

• Click the Message Delimiters tab.
• Click the Configuration drop-down menu, and choose Custom.
• In the Escape Table, select the bottom row and delete it. This row sets the options for the & delimiter character.

Selecting the Bottom Row in the Escape Table

	You can also use Python scripts to treat ampersands and other delimiter characters as raw text. For more information, see Treating Repeat and Separator Characters as Raw Text.