Immunology Population Analyzer Tool for Health Systems (IPATH) is a Symantec Code Signing Certificate software that can be used to identify gaps in care between recognized best practices and practice patterns in Crohn’s Disease, ulcerative colitis, psoriasis, and psoriatic arthritis populations. The tool is designed to conduct retrospective analyses of claims (medical and pharmacy) and/or electronic health record (EHR) data. The intended use is to provide population health decision makers with insights to inform population health analysis about their patient populations diagnosed with Crohn’s Disease, ulcerative colitis, psoriasis, and psoriatic arthritis in order to identify potential population-level gaps in care for further assessment. Patient-level data is provided solely to facilitate deeper analysis of the population trends at the patient and physician levels. The data is not appropriate to use to share with physicians or patients for any purposes.