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The following companion guides are instructions for submitting HIPAA transactions to MassHealth. When submitting electronic files to MassHealth, be sure to review the instructions in the appropriate companion guides, UB-04 and CMS-1500 Billing Guides, and billing tips flyers to determine the appropriate requirements for submitting electronic files to MassHealth.
- Changes to Companion Guides
Important! The companion guides for 5010 have been updated. Please use this document to understand the changes that have been made to the companion guides since the previous versions were issued. These changes have also been incorporated into the most recent versions of the companion guides below. - 270/271 Companion Guide
- 276/277 Companion Guide
- 820 Companion Guide
- 834 Outbound Companion Guide
- 835 Companion Guide
- 837I Companion Guide
- 837I Residential Care Homes Companion Guide
- 837P Companion Guide
This information is provided by MassHealth.