Commonwealth of Massachusetts MassHealth Provider Manual Series Subchapter Number and Title Table of Contents Page vi Substance Abuse Treatment Manual Transmittal Letter SAT-17 Date 01/16/13 6. Service Codes and Descriptions 6-1 Appendix A. Directory A-1 Appendix B. Enrollment Centers B-1 Appendix C. Third-Party-Liability Codes C-1 Appendix E. (Reserved) E-1 Appendix U. DPH-Designated Serious Reportable Events That Are Not Provider Preventable Conditions U-1 Appendix V. MassHealth Billing Instructions for Provider Preventable Conditions……………... V-1 Appendix W. EPSDT Services Medical and Dental Protocols and Periodicity Schedules W-1 Appendix X. Family Assistance Copayments and Deductibles X-1 Appendix Y. EVS Codes/Messages Y-1 Appendix Z. EPSDT/PPHSD Screening Services Z-1