EDI Health Care Claim Status Notification (277) This transaction set can be used by a healthcare payer or authorized agent to notify a provider, recipient or authorized agent regarding the status of a health care claim or encounter, or to request additional information from the provider regarding a health care claim or encounter. This transaction set is not intended to replace the Health Care Claim Payment/Advice Transaction Set (835) and therefore, is not used for account payment posting. The notification is at a summary or service line detail level. The notification may be solicited or unsolicited.