01Billing team must update all billing software and claim submission systems to STOP using all W-series, Z-series, and Y-series local procedure codes.
02Replace with equivalent national CPT/HCPCS codes listed in this policy for Medicaid and NJ FamilyCare claims.
03Identify any deleted codes with NO REPLACEMENT CODE (W1001, W1001 AA, W2650, W2655, W5760 76, W9096 22 52, W9096 52, W9097 52, W9098 52, W9200, W9333 52, W9334 52, W9335 52, W9337, W9338, W9338 52, Z0250 WM, Z0335, Z4000, W9820 WM, W9821-W9827, W9847-W9857, Z1100, Z1105, Z1110, Y7563) and implement workflow to prevent submission of these codes—claims with deleted codes will be denied.
04Update modifier mappings (AV→SA, WM→SB, WB→78, YD→UD, YY→SM, ZZ→SN, WT→EP) in billing software for all claim types (electronic and hard-copy).
05Verify mappings differ by provider type: EPSDT providers use different replacements than HealthStart/independent clinics.
06Providers must use corrected codes for all dates of service on or after April 1, 2004.
07Training required for all billing staff and providers on new code requirements.
08Claims submitted with old local codes after April 1, 2004 will be rejected.