Healthcare Eligibility Benefit Inquiry and Response 270/271 Companion Guide May 15, 2026 14:28 Updated Please contact edi.support@ayin.com or 503-584-2169 opt 1 for additional information. Updated Companion Guide. Health Care Eligibility Benefits Inquiry 270_271 Companion Guide.pdf 200 KB Download Related articles EDI Payor ID List Electronic Claims Direct Submission User Guide: SFTP Web Portal Program Tags/Location Info