X12 270/271
Healthcare Eligibility Benefit Inquiry and Response

The HIPAA standard for eligibility inquiry and response is the ASC X12N 270/271 - Health Care Eligibility Benefit Inquiry and Response, Version 4010, May 2000, Washington Publishing Company, 004010X092, and Addenda to Health Care Eligibility Benefit Inquiry and Response, Version 4010, October 2002, Washington Publishing Company, 004010X092A1, as referenced in §162.1202 of the Regulation.

The Health Care Coverage, Eligibility, and Benefit transactions are designed so that inquiry submitters (information receivers) can determine (a) whether an information source organization (e.g., payer, employer, HMO) has a particular subscriber or dependent on file, and (b) the health care eligibility and/or benefit information about that subscriber and/or dependent(s). The data available through this transaction set are used to verify an individual's eligibility and benefits, but cannot provide a history of benefit use. The information source organization may provide information about other organizations that may have third party liability for coordination of benefits.