The past tense of Itemize is itemized.
verb. ['ˈaɪtəˌmaɪz'] specify individually.
1. Verb, base form The catch is that you must itemize to take advantage of this break. 2. Verb, non-3rd person singular present Give to charity – it’s often tax deductible if you itemize on your tax return.
verb. ['ˈaɪtəˌmaɪz'] place on a list of items.