Implementation Guides

Providers billing electronic claims must follow the ASC X12N implementation guides. The 837 Institutional Implementation Guide is available from X12 by purchasing an X12 License. Visit the X12 licensing webpage to learn more.

ASC X12N implementation guides offer specific technical instructions for carrying out each HIPAA standard, including instructions on content and format requirements.

ASC X12 writes these documents for all health benefit payers to use, not specifically for Medicare.