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Updated 837I and 837P Acute Care Companion Guides and New 275 Acute Care Companion Guide Now Available

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The Texas Medicaid & Healthcare Partnership (TMHP) has updated the 837I and 837P Acute Care Companion Guides and has also created the new 275 Acute Care Claim Attachment Companion Guide.

Updates were made to the 837I and 837P Acute Care Companion Guides to include instructions on how to submit a Medicare Advantage Plan (MAP) claim, including the following changes:

  • GS03 value to equal ADVANTAGE for professional and institutional MAP claims
  • Addition of the PWK segment to link the new claim attachment (275 above) to the submitted claim

A new 275 Acute Care Claim Attachment Companion Guide was created as a new transaction for the MAP claim attachment.

The companion guides are located on the TMHP Electronic Data Interchange (EDI) web page under Technical Information. The companion guides have been updated to comply with the operating rules of the Council of Affordable Quality Healthcare (CAQH) Committee on Operating Rules for Information Exchange (CORE) template.

Pilot trading partner testing will be available beginning November 1, 2025, through November 30, 2025. Trading partners who are interested in participating in the pilot testing should send an email to edi_tradingpartner_notifications@tmhp.com. After the pilot test window is over, trading partners can contact the TMHP Contact Center at 800-925-9126 for more information.