Centers for Medicare and Medicaid Services (formerly Health Care Financing Administration) Grouper with Medicare Code Editor (CMSG/MCE) software edits medical record data to help identify coding errors, and inconsistencies between clinical data and coding. The software: (1) Assigns the medical record to a Major Diagnostic Category (MDC) and a Diagnosis Related Group (DRG), (2) Contains clinical edits that evaluate a patient's principal diagnosis, any secondary diagnoses, surgical procedures, age, sex, and discharge status for possible errors, (3) Displays the cost weight associated with the DRG assigned to the patient record, and (4) Processes medical record data either from a MS-DOS batch file or interactively in a Windows environment. The program automatically selects the appropriate grouper to process a medical record based on the discharge date entered from the medical record. This is the first release of the Windows-based CMSG/MCE software. Only versions 16.0-21.0 of the CMS Grouper are supported in this product.