This X12 Transaction Set contains the format and establishes the data contents of the Patient Information Transaction Set (275) for use within the context of an Electronic Data Interchange (EDI) environment. This transaction set can be used to communicate individual patient information requests and patient information (either solicited or unsolicited) between separate health care entities in a variety of settings to be consistent with confidentiality and use requirements. Patient information consists of demographic, clinical, and other supporting data.