Final answer:
The DEA number is an element found on a prescription that is not usually found on a medication order.
Step-by-step explanation:
The element that you will find on a prescription that you won't usually find on a medication order is the DEA number. The DEA number stands for Drug Enforcement Administration number and it is a unique identifier for prescribers who are authorized to prescribe controlled substances. This number is required on prescriptions for controlled substances to ensure that they are being prescribed by a legitimate and licensed healthcare provider.