diff --git a/conformance/fhir-ig-carin-bb/CHANGELOG b/conformance/fhir-ig-carin-bb/CHANGELOG
index ea45bfa5dd7..058b6e5529b 100644
--- a/conformance/fhir-ig-carin-bb/CHANGELOG
+++ b/conformance/fhir-ig-carin-bb/CHANGELOG
@@ -34,4 +34,8 @@ Changed the constraint location from: `ExplanationOfBenefit.item` and `Explanati
 - Source http://hl7.org/fhir/us/carin-bb/STU1.1/
 
 - Clean up the CapabilityStatement-c4bb.json to provide a parsable narrative text.
-- Remove invalid parameters from ig-r4.json
\ No newline at end of file
+- Remove invalid parameters from ig-r4.json
+
+08 DEC 2021 
+- v1.1.0 - Locked in the patternCanonical to avoid a needless discriminator warning. "patternCanonical": "http://hl7.org/fhir/us/carin-bb/StructureDefinition/C4BB-ExplanationOfBenefit|1.1.0",
+The same change is not reflected in 1.0.0.
\ No newline at end of file
diff --git a/conformance/fhir-ig-carin-bb/src/main/resources/hl7/fhir/us/carin-bb/110/package/StructureDefinition-C4BB-ExplanationOfBenefit.json b/conformance/fhir-ig-carin-bb/src/main/resources/hl7/fhir/us/carin-bb/110/package/StructureDefinition-C4BB-ExplanationOfBenefit.json
index 33abedf6783..9a7c2e77d1f 100644
--- a/conformance/fhir-ig-carin-bb/src/main/resources/hl7/fhir/us/carin-bb/110/package/StructureDefinition-C4BB-ExplanationOfBenefit.json
+++ b/conformance/fhir-ig-carin-bb/src/main/resources/hl7/fhir/us/carin-bb/110/package/StructureDefinition-C4BB-ExplanationOfBenefit.json
@@ -471,6 +471,7 @@
                         ]
                     }
                 ],
+                "patternCanonical": "http://hl7.org/fhir/us/carin-bb/StructureDefinition/C4BB-ExplanationOfBenefit|1.1.0",
                 "constraint": [
                     {
                         "key": "ele-1",