The HIPAA library is supplied in two versions, called HIPAA and HIPAA Validation:
The HIPAA version contains parsers and other components that do not validate incoming messages and that do not generate acknowledgments.
The HIPAA Validation version contains the same parsers and other components as the HIPAA version. In addition, the HIPAA Validation version contains a special project that implements the full set of validation and acknowledgment types defined in the HIPAA standard.