Under HIPAA, de-identified health information is not subject to the same restrictions as identifiable health information. De-identification involves removing all personally identifiable information, making it impossible to trace the data back to an individual. Once information is properly de-identified, it can be used and disclosed without the constraints of HIPAA, allowing for broader use in research, analysis, and public health efforts. However, it is essential to ensure that the de-identification process meets the standards set by HIPAA to maintain compliance.