Subscribe to updates for HUMANA - Multiple Transactions - Due to scheduled maintenance HCSR Outpatient Auth, HCSR Inpatient Auth and HCSR Detailed Auth/Referral transactions will be unavailable Sunday, March 8th from 6:00:00 AM EDT through 11:00:00 AM EDT Sunday, March 8th. via email and/or text message. You'll receive email notifications when incidents are updated, and text message notifications whenever Payer Notifications creates or resolves an incident.