Check the definition at 4.26.13.3.1. The third element of structuring is conducting a transaction in currency, and the last element is for the purpose of evading specific reporting requirements, where each of those reporting requirements involve transactions in currency. This is from the Bank Secrecy Act.

The other type of transaction they mention in 4.16.13.4 also involves cash payments in the course of a trade or business.

Everything else is what someone might do to try to conceal structuring, but if cash isn't involved, it's not structuring, because there's no covered reporting requirement.