The search parameter verification-status is only listed in the Capability Statement and the Base Profiles for Endpoint, CareTeam, HealthcareService and InsurancePlan. 

Verification-result is not listed for Location, Organization, OrganizationAffiliation , Practitioner, or PractitionerRole in the Capability Statements.

https://hl7.org/fhir/us/ndh/2023Sep/CapabilityStatement-ndh-exchange-server.html 

https://hl7.org/fhir/us/ndh/2023Sep/CapabilityStatement-ndh-exchange-base-expanded-server.html

https://hl7.org/fhir/us/ndh/2023Sep/CapabilityStatement-ndh-exchange-base-server.html

Verification-result is not listed under Search Parameters  in the Base Profiles for Location, Organization, Network, OrganizationAffiliation, Practitioner, or PractitionerRole.

https://hl7.org/fhir/us/ndh/2023Sep/StructureDefinition-ndh-Location.html#search-parameters

https://hl7.org/fhir/us/ndh/2023Sep/StructureDefinition-ndh-Network.html#search-parameters

https://hl7.org/fhir/us/ndh/2023Sep/StructureDefinition-ndh-OrganizationAffiliation.html#search-parameters

https://hl7.org/fhir/us/ndh/2023Sep/StructureDefinition-ndh-Practitioner.html#search-parameters

https://hl7.org/fhir/us/ndh/2023Sep/StructureDefinition-ndh-PractitionerRole.html#search-parameters

https://hl7.org/fhir/us/ndh/2023Sep/StructureDefinition-ndh-Organization.html#search-parameters

They are included in the IG, but the only reference I can find is here:

https://hl7.org/fhir/us/ndh/2023Sep/artifacts.html#behavior-search-parameters 

Proposed Resolution:  Include the SearchParameter under the Profiles and include them in the Capability Statements if they are required.  If the search parameters for verification-result are not needed, then remove them from the IG.