Add information about use of Consent resource in $member-match operation  The Authorization with Consent workflow in the Health Record Exchange (HRex) IG adds a $MemberAccess operation which handles the consent. The Payer-to-Payer Exchange section in PDex has been updated to reflect the use of $memberAccess. The following text has been added:   A Consent Resource SHOULD be provided as part of a $member-access transaction sent to the prior Payer. The resource is profiled in the Health Record Exchange (HRex) IG : http://hl7.org/fhir/us/davinci-hrex/ . The consent resource identifies the categories of data to be exchanged with the member’s permission. There are two categories of data that can be exchanged: Everything: All data with no restrictions. Non-Additionally protected data classes. The CMS Interoperability Rule defines a set of data that can be excluded from data sharing. The restricted data classes are defined as: Sensitive data classes identified in 42.CFR Part 2 Data identified as sensitive in state regulations, such as sexual and mental health data. These restricted data classes are excluded from the Non-Additionally protected data class. In situations where a data holder is unable to segregate data into the two data classes then no data should be released when a member has requested only Non-Additionally protected data be exchanged.