HIPAA Administrative Simplification Compliance Deadlines Date  Deadline October 15, 2002 Deadline to submit a compliance extension form for Electronic Health Care Transactions and Code Sets. October 16, 2002 Electronic Health Care Transactions and Code Sets - all covered entities except those who filed for an extension and are not a small health plan. April 14, 2003 Privacy All covered entities except small health plans. April 16, 2003 Electronic Health Care Transactions and Code Sets - all covered entities must have started software and systems testing. October 16, 2003  Electronic Health Care Transactions and Code Sets - all covered entities who filed for an extension and small health plans. October 16, 2003 Medicare will only accept paper claims under limited circumstances. April 14, 2004  Privacy small health plans July 30, 2004 Employer Identifier Standard - all covered entities except small health plans. April 21, 2005 Security Standards - all covered entities except small health plans. August 1, 2005 Employer Identifier Standard - small health plans. April 21, 2006  Security Standards  small health plans.