system conversion case study

CASE STUDIES IN HEALTH INFORMATION MANAGEMENT 111 CASE 3-1 System Conversion Your facility is getting a new master patient index (MPl. You are replacing an existing computerized MPI that no longer meets the needs of the organization. Most of the staff are excited about the new functionality that will be available. The problem you find is that there are some differences in the structure of the data fields between the two systems. Use Table 3-1 to review the differences between them. Determine if the data in the old system need to be converted to meet the character requirements in the data dictionary of the new system. If any of the fields need to be converted, specify exactly what needs to be done ladd leading zerdes, delete characters, convert data to new valid entries, and so forth. Precision is important, since the programmers will be using this information to write the conversion software code. If appropriate, provide the programmers with examples so that there will not be any confusion. Identify any mapping that may be needed and document your findings in the comments column in Table 3-1. This table is also available on the student companion website for your use. Comments OTABLE 3-1 Field Analysis for System Conversion Field Analysis for System Conversion New System Field Old System Date of birth (DOBI mm/dd/yyyy mm/dd/yyyy 30 characters 25 characters Last name 18 characters 20 characters First name Middle initial 1 character 1 character Service Medical Cardiology Newborn Cardiovascular OB/Gyn surgery Pediatrics Dermatology Surgery Endocrinology Family practice Gastroenterology General surgery Gynecology Internal medicine Neonatology Neurology Neurosurgery Newborn Obstetrics Oncology Orthopedics Pediatrics Pulmonary Inpatient Cardiac rehab ER Patient types Inpatient ER Outpatient 4 digits Physician number Medical record number 7 digits Social Security number 11 characters City State Outpatient surgery Outpatient 5 digits 10 digits 9 characters 15 characters 2 characters 20 characters 20 characters