The Health Insurance Portability and Accountability Act of 1996 (HIPAA), requires that all transactions and code sets be in HIPAA standard format (ASCX12N). To help your compliance efforts, the following guides are available:

• Health Plan Eligibility (270/271)  
• Health Claim Status (276/277)
• Health Care Claims (837I & 837P) 
• Electronic Remittance Advice (835)