Message Text – August 2026

MassHealth Provider Remittance Advice

The messages listed below may be general All Provider messages, applicable to several provider types or services, or provider specific. 

You can request a copy of a prior message by:

• Emailing [e-mail]

• Sending a letter to

  MassHealth Customer Service
  P.O. Box 278
  Quincy, MA 02171

• CallingMassHealth Customer Services at [phone],
  Hours: Monday through Friday 8 a.m. to 5 p.m.

08/25/2026

Claims Reprocessed FOR 2026 HCPCS/CPT Code Updates 

The Centers for Medicare & Medicaid Services (CMS) have revised the HCPCS codes for 2026. MassHealth is updating the Service Codes and Descriptions (Subchapter 6) of the Physician Manual to incorporate those 2026 HCPCS/Current Procedural Terminology (CPT) service code updates, as applicable.

MassHealth updated its system to reflect the 2026 HCPCS/CPT coding changes effective for dates of service on or after January 1, 2026. All affected claims will be reprocessed and will appear on future remittance advices.

If you have questions, please contact MassHealth at [phone] or [e-mail].

08/18/2026

837 Replacement transactions

MassHealth providers, Billing Intermediaries, and Software Vendors are reminded that submitters may use replacement transactions to adjust paid claims only. If the submitter is trying to correct a paid claim where the member ID, provider ID, and claim type are staying the same, they can send in a replacement claim with appropriate lines from the original claim (both paid and denied). Submitters should not use claim frequency code equal to “7” for resubmitting denied claims. These claims will deny for MassHealth EOB 0500 ADJUSTMENT FAILED and/or 1100 ADJUST: FORMER ICN INCORRECT. 

For questions, please refer to the MassHealth Standard HIPAA Companion Guides located on mass.gov at https://www.mass.gov/lists/masshealth-standard-hipaa-companion-guides.

If you have questions or concerns, please contact MassHealth at [phone] or [e-mail]. LTSS providers should contact the LTSS Provider Service Center at [phone] or [e-mail].

Date published:	August 18, 2026