Final answer:
In a tabular list, brackets [ ] are the punctuation used to indicate additional terms are needed for an incomplete term to be assigned a specific code.
Step-by-step explanation:
The punctuation marks used in a tabular list after an incomplete term that needs one or more additional terms in order to be assigned to a particular code are brackets [ ]. Brackets are used to indicate any changes or additions to a quotation or a term. In medical coding and similar fields, brackets can be employed to signify necessary information that completes a code or term.