Health insurance reform; modifications to the Health Insurance Portability and Accountability Act (HIPAA) electronic transaction standards. Final rule.

This final rule adopts updated versions of the standards for electronic transactions originally adopted under the Administrative Simplification subtitle of the Health Insurance Portability and Accountability Act of 1996 (HIPAA). This final rule also adopts a transaction standard for Medicaid pharmacy subrogation. In addition, this final rule adopts two standards for billing retail pharmacy supplies and professional services, and clarifies who the "senders" and "receivers" are in the descriptions of certain transactions.