This code system http://hl7.org/fhir/questionnaire-enable-behavior defines the following codes:

CodeDisplayDefinition
all AllEnable the question when all the enableWhen criteria are satisfied.
any AnyEnable the question when any of the enableWhen criteria are satisfied.
<status value="active"/><experimental value="false"/><date value="2021-01-05T10:01:24+11:00"/><publisher value="HL7 (FHIR Project)"/><contact><telecom><system value="url"/><value value="http://hl7.org/fhir"/></telecom><telecom><system value="email"/><value value="fhir@lists.hl7.org"/></telecom></contact><description value="Controls how multiple enableWhen values are interpreted - whether all or any must be true."/><jurisdiction><coding><system value="http://unstats.un.org/unsd/methods/m49/m49.htm"/><code value="001"/><display value="World"/></coding></jurisdiction><caseSensitive value="true"/><valueSet value="http://hl7.org/fhir/ValueSet/questionnaire-enable-behavior"/><content value="complete"/><concept><code value="all"/><display value="All"/><definition value="Enable the question when all the enableWhen criteria are satisfied."/></concept><concept><code value="any"/><display value="Any"/><definition value="Enable the question when any of the enableWhen criteria are satisfied."/></concept></CodeSystem>