From https://build.fhir.org/ig/HL7/davinci-epdx/StructureDefinition-pdex-priorauthorization.html description

"EOB-institutional-item-or-header-adjudication: Institutional EOB: Should have adjudication at the item or header level, but not both."

Is the constraint that adjudication cannot be at both item & header level applicable only for claims because for prior auth we have adjudication at both item (product or service) and header (authorization) level.