The combination of a data communication system, including data input, data retention, and data output means, and to the supporting software to develop an accurate account of charges for a surgical procedure, including pre-op, surgical and post-op, of a patient in a medical facility. The method consists of a pair of sequential and interrelated modular subsystems having an administrator module and a manager module. The method includes inputting of such information as base charges, modifying the inputted base charges based on known circumstances and unique conditions of the patient, and identifying materials and facility resources used in the surgical procedure. Further, the actual materials used in the surgical procedures are identified along with actual items and duration of use during the surgical procedure, for inputting into data input base, where all of this data and information is transmitted to the data retention and data output base for accurately determining the appropriate charges to the patient.