Accredited Standards Committee X12 (ASC X12) ASC X12 = The Accredited Standards Committee X12.   ASC X12 is accredited by the American National Standards Institute (ANSI).   ASC X12 is the U.S. standards body for the cross-industry development, maintenance, and publication of electronic data interchange standards (EDI Standards)   ASC X12 defines EDI standards for many American industries, including health care industry. Most of the electronic transaction standards mandated or proposed under HIPAA are X12 standards.   ASC X12 also serves as a key player in international forums by contributing to the universal core component work and message design architecture.   For more Information visit : http://www.x12.org/