Attention Medicaid Providers: The Washington State Health Care Authority (HCA) recently published an update to the billing guide for the Access to Baby and Child Dentistry (ABCD) program. The update clarifies ABCD and Mouth Matters billing for Federally Qualified Health Centers (FQHC) and Rural Health Clinic (RHC) providers by adding a table for the ABCD and Mouth Matters billing for FQHC and RHC medical providers.