~ sign not rendering in HL7 file

The tilde character ("~") has special meaning in HL7; it is normally used as the field repetition character. If it is being included in a field value as a literal character, it is often converted to an "escape sequence" so that it can be delivered to a downstream system intact rather than interpreted as a delimiter; the escape sequence for the field repetition character is \R\.

Is your intended use of the ~ character to function as a repetition delimiter, or is it actually a verbatim part of a field value?