Apple Health - Updated Private Duty Nursing for Children Billing Guide Washington State Health Care Authority sent this bulletin at 08/30/2018 04:04 PM PDT Having trouble viewing this email? View it as a Web page. Apple Health (Medicaid) Provider Alert The Health Care Authority has published an updated Private Duty Nursing for Children Billing Guide, effective September 1, 2018. See the “What Has Changed” table on pages 2 and 3 for the list of updates.