I need some help with the minimum requirements for nursing documentation to charge 99211. We have an outpatient infusion center where patient's are coming in for treatment by a physician (billed separately through that physician's office) our nurses are evaluating, prepping, and monitoring the patient. The dept wants to charge 99211 for the nursing services and the charge for the medications used. Currently the nurses are documenting vital signs and a sentence that the procedure was performed. What are the minimum documentation requirements to charge 99211? Should they also be documenting pain scale and/or any other evaluations?