De-identification of electronic medical records for continuous data development

A computer system for providing de-identified protected health information (PHI) associated with electronic medical records (EMRs) based on a common analysis structure (CAS), comprising:

• one or more processors, one or more computer-readable memories, one or more computer-readable tangible storage devices, and program instructions stored on at least one of the one or more storage devices for execution by at least one of the one or more processors via at least one of the one or more memories, wherein the computer system is capable of performing a method comprising:
• generating a first common analysis structure (CAS) for representing the PHI associated with the EMRs, wherein generating the first CAS comprises logically representing unstructured data associated with the EMRs and including the PHI as objects to create an object-based data structure associated with the electronic medical records (EMRs), wherein the objects comprise normalized annotations;
• in response to detecting a system event, extracting first CAS data associated with the first CAS from one or more log files, wherein the first CAS data comprises the unstructured data and the normalized annotations based on the objects that are associated with the unstructured data;
• obfuscating the unstructured data associated with the first CAS based on the extracted first CAS data;
• and
• generating and providing a second CAS comprising the obfuscated unstructured data and a copied version of the normalized annotations, wherein the copied version of the normalized annotations are correlated with the obfuscated unstructured data.

A computer program product for providing de-identified protected health information (PHI) associated with electronic medical records (EMRs) based on a common analysis structure (CAS), comprising:

• one or more computer-readable storage devices and program instructions stored on at least one of the one or more tangible storage devices, the program instructions executable by a processor, the program instructions comprising:
• program instructions to generate a first common analysis structure (CAS) for representing the PHI associated with the EMRs, wherein generating the first CAS comprises logically representing unstructured data associated with the EMRs and including the PHI as objects to create an object-based data structure associated with the electronic medical records (EMRs), wherein the objects comprise normalized annotations;
• in response to detecting a system event, program instructions to extract first CAS data associated with the first CAS from one or more log files, wherein the first CAS data comprises the unstructured data and the normalized annotations based on the objects that are associated with the unstructured data;
• program instructions to obfuscate the unstructured data associated with the first CAS based on the extracted first CAS data;
• and
• program instructions to generate and provide a second CAS comprising the obfuscated unstructured data and a copied version of the normalized annotations, wherein the copied version of the normalized annotations are correlated with the obfuscated unstructured data.