diff --git a/org.hl7.fhir.r5/src/main/java/org/hl7/fhir/r5/context/CanonicalResourceManager.java b/org.hl7.fhir.r5/src/main/java/org/hl7/fhir/r5/context/CanonicalResourceManager.java
index c1db27961..289f7b52d 100644
--- a/org.hl7.fhir.r5/src/main/java/org/hl7/fhir/r5/context/CanonicalResourceManager.java
+++ b/org.hl7.fhir.r5/src/main/java/org/hl7/fhir/r5/context/CanonicalResourceManager.java
@@ -213,7 +213,7 @@ public class CanonicalResourceManager<T extends CanonicalResource> {
 
   public void see(CachedCanonicalResource<T> cr) {
     // ignore UTG NUCC erroneous code system
-    if (cr.getPackageInfo().getId().startsWith("hl7.terminology") && "http://nucc.org/provider-taxonomy".equals(cr.getUrl())) {
+    if (cr.getPackageInfo() != null && cr.getPackageInfo().getId() != null && cr.getPackageInfo().getId().startsWith("hl7.terminology") && "http://nucc.org/provider-taxonomy".equals(cr.getUrl())) {
       return;
     }