Commonwealth of Massachusetts Division of Medical Assistance Provider Manual Series SUBCHAPTER NUMBER AND TITLE TABLE OF CONTENTS PAGE vi PSYCHOLOGIST MANUAL TRANSMITTAL LETTER PSY-20 DATE 10/01/03 6. SERVICE CODES AND DESCRIPTIONS Psychological Testing 6-1 Appendix A. DIRECTORY A-1 Appendix B. ENROLLMENT CENTERS B-1 Appendix C. THIRD-PARTY-LIABILITY CODES C-1 Appendix D. MENTAL HEALTH/SUBSTANCE ABUSE PROGRAM D-1 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