Does every medication order need to contain a diagnosis, condition, or indication-for-use?  

No. Standard MM.04.01.01 requires that a diagnosis, condition, or indication for use exists for each medication ordered. However, the indication can be anywhere in the medical record and need not be part of the order itself. For example, the indication may be part of the medical history, in the form of lab values, diagnoses, progress note entries, etc. 

However, standard MM.04.01.01. EP 2 requires organizational policy to designate when an indication for use is required as an element of a specific medication order.  For example, an order written as 'Acetaminophen 650 mg po q4h prn for fever greater than 101' clearly defines the indication when it would be appropriate to administer this medication.