Commonwealth of Massachusetts MassHealth Provider Manual Series Subchapter Number and Title Table of Contents Page vi Rehabilitation Center Manual Transmittal Letter RHB-20 Date 06/01/11 6. Regulations and Service Codes ................................................................................ .................... 6-1 Appendix A. Directory ................................................................................ ..................................... A-1 Appendix B. Enrollment Centers ................................................................................ ...................... B-1 Appendix C. Third-Party-Liability Codes ................................................................................ ........ C-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 Codes ........................................................................ Z-1