Massachusetts State Seal An official website of the Commonwealth of Massachusetts Here's how you know

Official websites use .mass.gov

A .mass.gov website belongs to an official government organization in Massachusetts.

Secure websites use HTTPS

A lock icon or https:// means you've safely connected to the official website. Share sensitive information only on official, secure websites.

Skip to main content
  • This page, 2025 MassHealth transmittal letters, is   offered by
  • MassHealth

2025 MassHealth transmittal letters

Sign up to receive email notification when new MassHealth provider bulletins and transmittal letters are published.

Skip table of contents
You skipped the table of contents section.

December

AOH-61: Updates to Subchapter 6, Open PDF file, 646.72 KB (English, PDF 646.72 KB)
AOH-61: Updates to Subchapter 6, Open DOCX file, 172.7 KB (English, DOCX 172.7 KB)
DME-50: Durable Medical Equipment Manual: HCPCS Updates to Subchapter 6 and the MassHealth Durable Medical Equipment and Oxygen Payment and Coverage Guideline Tool, Open PDF file, 249.22 KB (English, PDF 249.22 KB)
DME-50: Durable Medical Equipment Manual: HCPCS Updates to Subchapter 6 and the MassHealth Durable Medical Equipment and Oxygen Payment and Coverage Guideline Tool, Open DOCX file, 130.49 KB (English, DOCX 130.49 KB)
ORT-30: Orthotics Manual: HCPCS Updates to Subchapter 6 and to the MassHealth Orthotics and Prosthetics Payment and Coverage Guideline Tool, Open PDF file, 234.82 KB (English, PDF 234.82 KB)
ORT-30: Orthotics Manual: HCPCS Updates to Subchapter 6 and to the MassHealth Orthotics and Prosthetics Payment and Coverage Guideline Tool, Open DOCX file, 128.2 KB (English, DOCX 128.2 KB)
PCA-26: Revised Program Regulations, Open PDF file, 681.55 KB (English, PDF 681.55 KB)
PCA-26: Revised Program Regulations, Open DOCX file, 260.19 KB (English, DOCX 260.19 KB)
PHY-173: Updates to Subchapter 6, Open PDF file, 547.16 KB (English, PDF 547.16 KB)
PHY-173: Updates to Subchapter 6, Open DOCX file, 216.15 KB (English, DOCX 216.15 KB)
PRT-31: Prosthetics Manual: HCPCS Updates to Subchapter 6 and to the MassHealth Orthotics and Prosthetics Payment and Coverage Guideline Tool, Open PDF file, 235.38 KB (English, PDF 235.38 KB)
PRT-31: Prosthetics Manual: HCPCS Updates to Subchapter 6 and to the MassHealth Orthotics and Prosthetics Payment and Coverage Guideline Tool, Open DOCX file, 128.29 KB (English, DOCX 128.29 KB)

November

CFS-1: Correctional Facility Services Manual (New Provider Manual), Open PDF file, 425.71 KB (English, PDF 425.71 KB)
CFS-1: Correctional Facility Services Manual (New Provider Manual), Open DOCX file, 224.3 KB (English, DOCX 224.3 KB)
EIP-23: Early Intervention Program Manual (Update to 130 CMR 440.000 Subchapter 6), Open PDF file, 331.37 KB (English, PDF 331.37 KB)
EIP-23: Early Intervention Program Manual (Update to 130 CMR 440.000 Subchapter 6), Open DOCX file, 140.04 KB (English, DOCX 140.04 KB)

October

PACT-1: Program of Assertive Community Treatment Services Manual (New Provider Manual), Open PDF file, 424.29 KB (English, PDF 424.29 KB)
PACT-1: Program of Assertive Community Treatment Services Manual (New Provider Manual), Open DOCX file, 181.48 KB (English, DOCX 181.48 KB)
RHB-22: Service Codes and Descriptions Updates, Open PDF file, 465.73 KB (English, PDF 465.73 KB)
RHB-22: Service Codes and Descriptions Updates, Open DOCX file, 159.7 KB (English, DOCX 159.7 KB)
SHC-20: Updates to Service Codes and Descriptions, Open PDF file, 394.67 KB (English, PDF 394.67 KB)
SHC-20: Updates to Service Codes and Descriptions, Open DOCX file, 145.43 KB (English, DOCX 145.43 KB)
THP-28: Updates to Service Codes and Descriptions, Open PDF file, 405.81 KB (English, PDF 405.81 KB)
THP-28: Updates to Service Codes and Descriptions, Open DOCX file, 175.82 KB (English, DOCX 175.82 KB)

September

AFC-21: Revised Regulations at 130 CMR 408.000, Open PDF file, 751.65 KB (English, PDF 751.65 KB)
AFC-21: Revised Regulations at 130 CMR 408.000, Open DOCX file, 250.12 KB (English, DOCX 250.12 KB)
MHC-53: Updates to the Mental Health Center Regulations and Code Revisions, Open PDF file, 1.25 MB (English, PDF 1.25 MB)
MHC-53: Updates to the Mental Health Center Regulations and Code Revisions, Open DOCX file, 303.46 KB (English, DOCX 303.46 KB)
NF-64: Revised Regulations at 130 CMR 456.000, Open PDF file, 624.93 KB (English, PDF 624.93 KB)
NF-64: Revised Regulations at 130 CMR 456.000, Open DOCX file, 220.85 KB (English, DOCX 220.85 KB)

August

ALL-252: Updates to Appendices W and Z, Open PDF file, 431.45 KB (English, PDF 431.45 KB)
ALL-252: Updates to Appendices W and Z, Open DOCX file, 186.43 KB (English, DOCX 186.43 KB)
CBHC-4: Updates to Subchapter 6 Service Codes, Open PDF file, 447.12 KB (English, PDF 447.12 KB)
CBHC-4: Updates to Subchapter 6 Service Codes, Open DOCX file, 169.13 KB (English, DOCX 169.13 KB)
SUD-25: Updates to Subchapter 6 Service Codes, Open PDF file, 366.45 KB (English, PDF 366.45 KB)
SUD-25: Updates to Subchapter 6 Service Codes, Open DOCX file, 162.29 KB (English, DOCX 162.29 KB)

July

ADH-29: Adult Day Health Manual: Updates to Subchapter 6, Open PDF file, 195.09 KB (English, PDF 195.09 KB)
ADH-29: Adult Day Health Manual: Updates to Subchapter 6, Open DOCX file, 132.05 KB (English, DOCX 132.05 KB)
LAB-60: Updates to Subchapter 6: Addition of Service Codes Related to Genetic Testing, Open PDF file, 454.42 KB (English, PDF 454.42 KB)
LAB-60: Updates to Subchapter 6: Addition of Service Codes Related to Genetic Testing, Open DOCX file, 157.98 KB (English, DOCX 157.98 KB)

May

DME-49: Durable Medical Equipment Manual: HCPCS Updates to Subchapter 6 and the MassHealth Durable Medical Equipment and Oxygen Payment and Coverage Guideline Tool, Open PDF file, 172.05 KB (English, PDF 172.05 KB)
DME-49: Durable Medical Equipment Manual: HCPCS Updates to Subchapter 6 and the MassHealth Durable Medical Equipment and Oxygen Payment and Coverage Guideline Tool, Open DOCX file, 159.65 KB (English, DOCX 159.65 KB)
LAB-59: Updates to Subchapter 6 (2025 HCPCS), Open PDF file, 374.07 KB (English, PDF 374.07 KB)
LAB-59: Updates to Subchapter 6 (2025 HCPCS), Open DOCX file, 156.7 KB (English, DOCX 156.7 KB)
ORT-29: Orthotics Manual: HCPCS Updates to Subchapter 6 and to the MassHealth Orthotics and Prosthetics Payment and Coverage Guideline Tool, Open PDF file, 164.24 KB (English, PDF 164.24 KB)
ORT-29: Orthotics Manual: HCPCS Updates to Subchapter 6 and to the MassHealth Orthotics and Prosthetics Payment and Coverage Guideline Tool, Open DOCX file, 149.53 KB (English, DOCX 149.53 KB)
POD-78: Updates to Subchapter 6 Codes (2025 HCPCS), Open PDF file, 227.82 KB (English, PDF 227.82 KB)
POD-78: Updates to Subchapter 6 Codes (2025 HCPCS), Open DOCX file, 159.07 KB (English, DOCX 159.07 KB)
PRT-30: Prosthetics Manual: HCPCS Updates to Subchapter 6 and to the MassHealth Orthotics and Prosthetics Payment and Coverage Guideline Tool, Open PDF file, 157.48 KB (English, PDF 157.48 KB)
PRT-30: Prosthetics Manual: HCPCS Updates to Subchapter 6 and to the MassHealth Orthotics and Prosthetics Payment and Coverage Guideline Tool, Open DOCX file, 141.42 KB (English, DOCX 141.42 KB)

April

ALL-251: All Provider Manual: Updated Appendix C: Third Party Liability Codes, Open PDF file, 883.27 KB (English, PDF 883.27 KB)
ALL-251: All Provider Manual: Updated Appendix C: Third Party Liability Codes , Open DOCX file, 298.4 KB (English, DOCX 298.4 KB)
AOH-60: Updates to Subchapter 6 (2025 CPT/HCPCS), Open PDF file, 515.17 KB (English, PDF 515.17 KB)
AOH-60: Updates to Subchapter 6 (2025 CPT/HCPCS), Open DOCX file, 209.94 KB (English, DOCX 209.94 KB)
LIBHC-3: Code Revisions to Subchapter 6 of the Licensed Independent Behavioral Health Clinician Manual (formerly the Licensed Independent Clinical Social Worker Manual), Open PDF file, 282.47 KB (English, PDF 282.47 KB)
LIBHC-3: Code Revisions to Subchapter 6 of the Licensed Independent Behavioral Health Clinician Manual (formerly the Licensed Independent Clinical Social Worker Manual), Open DOCX file, 138.81 KB (English, DOCX 138.81 KB)
PSY-27: Updates to the Subchapter 6 of the Psychologist Manual, Open PDF file, 283.64 KB (English, PDF 283.64 KB)
PSY-27: Updates to the Subchapter 6 of the Psychologist Manual, Open DOCX file, 139.33 KB (English, DOCX 139.33 KB)

March

LICSW-2: Updates to the Licensed Independent Clinical Social Worker Manual Regulations, Open PDF file, 334.92 KB (English, PDF 334.92 KB)
LICSW-2: Updates to the Licensed Independent Clinical Social Worker Manual Regulations, Open DOCX file, 144.95 KB (English, DOCX 144.95 KB)
PHY-172: Physician Manual: Updates to Subchapter 6 (2025 CPT/HCPCS), Open PDF file, 386.68 KB (English, PDF 386.68 KB)
PHY-172: Physician Manual: Updates to Subchapter 6 (2025 CPT/HCPCS), Open DOCX file, 221.93 KB (English, DOCX 221.93 KB)
PSY-26: Updates to Psychologist Regulation, Open PDF file, 329.26 KB (English, PDF 329.26 KB)
PSY-26: Updates to Psychologist Regulation, Open DOCX file, 148.42 KB (English, DOCX 148.42 KB)
SUD-24: Updates to the Substance Use Disorder Treatment Regulations and Code Revisions, Open PDF file, 385.9 KB (English, PDF 385.9 KB)
SUD-24: Updates to the Substance Use Disorder Treatment Regulations and Code Revisions, Open DOCX file, 194.89 KB (English, DOCX 194.89 KB)

January

ALL-250: Amendments to the Administrative and Billing Regulations, Open PDF file, 1001.47 KB (English, PDF 1001.47 KB)
ALL-250: Amendments to the Administrative and Billing Regulations, Open DOCX file, 325.02 KB (English, DOCX 325.02 KB)
CHC-123: Updates to Subchapter 6, Open PDF file, 401 KB (English, PDF 401 KB)
CHC-123: Updates to Subchapter 6, Open DOCX file, 254.14 KB (English, DOCX 254.14 KB)
HMR-1: New Provider Regulations, Open PDF file, 335.06 KB (English, PDF 335.06 KB)
HMR-1: New Provider Regulations, Open DOCX file, 280.57 KB (English, DOCX 280.57 KB)
LAB-58: Updates to Subchapter 6, Open PDF file, 300.97 KB (English, PDF 300.97 KB)
LAB-58: Updates to Subchapter 6, Open DOCX file, 174.75 KB (English, DOCX 174.75 KB)

Help Us Improve Mass.gov  with your feedback

Please do not include personal or contact information.
Feedback