Amazon Elasticsearch Service is now HIPAA Eligible. You can now use Amazon Elasticsearch Service to store and analyze protected health information (PHI) and build HIPAA compliant applications. 

Amazon Elasticsearch Service is now in-scope of AWS’ PCI DSS which will allow you to store, process, or transmit cardholder data using the service. Additionally, Amazon Elasticsearch Service is in-scope of AWS’ ISO 9001, 27001, 27017, and 27018 certifications. PCI DSS and ISO are among the most recognized global security standards for attesting to quality and information security management in the cloud. 

Reference: HIPAA Eligible