Administrative Transactions - Non-Claims Administrative Transaction Acknowledgements Enrollment and Disenrollment in a Health Plan Health Care Eligibility Benefit Inquiry and Response Health Care Eligibility Benefit Inquiry and Response for Retail Pharmacy Coverage Administrative Transactions to Financial Exchanges Electronic Funds Transfer for Payments to Health Care Providers Health Care Payment and Remittance Advice Health Plan Premium Payments for Covered Members Administrative Transactions to Support Clinical Care Health Care Attachments to Support Claims, Referrals and Authorizations Referral Certification and Authorization for Pharmacy Transactions Referral Certification and Authorization Request and Response for Dental, Professional and Institutional Services Administrative Transactions: Price Transparency Advanced Estimates for Patient Costs from Providers & Payers Health Care Claims and Coordination of Benefits Health Care Claim Status Request and Response Health Care Claims or Equivalent Encounter Information for Dental Claims Health Care Claims or Equivalent Encounter Information for Institutional Claims Health Care Claims or Equivalent Encounter Information for Professional Claims Health Care Claims or Equivalent Encounter Information for Retail Pharmacy Claims Health Care Claims or Equivalent Encounter Information for Retail Pharmacy Supplies and Professional Services Operating Rules to Support Administrative Transactions CAQH CORE Operating Rules for Benefit Enrollment and Maintenance CAQH CORE Operating Rules for Claim Status CAQH CORE Operating Rules for Connectivity CAQH CORE Operating Rules for Electronic Funds Transfer (EFT) & Electronic Remittance Advice (ERA) CAQH CORE Operating Rules for Eligibility & Benefits CAQH CORE Operating Rules for Health Care Claims CAQH CORE Operating Rules for Premium Payments CAQH CORE Operating Rules for Prior Authorization & Referrals CAQH CORE Operating Rules for the Exchange of an Attributed Patient Roster Operating Rules to Support Electronic Prescribing Transactions