Commonwealth of Massachusetts MassHealth Provider Manual Series Subchapter Number and Title Table of Contents Page vi Chronic Disease and Rehabilitation Outpatient Hospital Manual Transmittal Letter COH-1 Date 11/01/06Appendix A. Directory A1 Appendix B. Enrollment Centers B1 Appendix C. ThirdParty-Liability Codes C1 Appendix W. EPSDT Services: Medical Protocol and Periodicity Schedule W-1 Appendix X. Family Assistance Copayments and Deductibles X-1 Appendix Y. REVS/Codes Messages Y-1 Appendix Z. EPSDT Services Laboratory Codes Z-1