New documentation used to add information to the original entry.

• A. Addendum
• B. Erratum
• C. Revision
• D. Annotation

Answer: (A)

Adding new information to an existing chart entry is accomplished with an addendum. An addendum is a separate note attached to the original documentation to supply additional details that weren't available at the time of the initial entry. It preserves the original record while incorporating further information, and it is dated and signed to maintain an audit trail. This makes it the appropriate mechanism for expanding documentation after the fact. By contrast, an erratum corrects mistakes in the original note, a revision changes the original text itself, and an annotation is more of a marginal comment or explanatory note rather than a formal addition to the chart. Therefore, the best term for new documentation used to add information to the original entry is addendum.