diff --git a/src/Microsoft.Health.Fhir.Core/Features/Conformance/CapabilityStatementBuilder.cs b/src/Microsoft.Health.Fhir.Core/Features/Conformance/CapabilityStatementBuilder.cs
index 55112633a6..38ccd44711 100644
--- a/src/Microsoft.Health.Fhir.Core/Features/Conformance/CapabilityStatementBuilder.cs
+++ b/src/Microsoft.Health.Fhir.Core/Features/Conformance/CapabilityStatementBuilder.cs
@@ -404,6 +404,24 @@ public async Task<ICapabilityStatementBuilder> SyncProfilesAsync(CancellationTok
 
         public ITypedElement Build()
         {
+            // Remove resource entries with no interactions to ensure FHIR conformance.
+            // In STU3, CapabilityStatement.rest.resource.interaction has min cardinality 1,
+            // so resources without interactions (e.g. Parameters) must be excluded.
+            if (_modelInfoProvider.Version == FhirSpecification.Stu3)
+            {
+                foreach (var restComponent in _statement.Rest)
+                {
+                    var emptyResources = restComponent.Resource
+                        .Where(r => r.Interaction == null || r.Interaction.Count == 0)
+                        .ToList();
+
+                    foreach (var resource in emptyResources)
+                    {
+                        restComponent.Resource.Remove(resource);
+                    }
+                }
+            }
+
             // To build a CapabilityStatement we use a custom JsonConverter that serializes
             // the ListedCapabilityStatement into a CapabilityStatement poco
             var json = JsonConvert.SerializeObject(_statement, new JsonSerializerSettings