From a620e2aa30c6e2121be9ba066766745fb96c3b1f Mon Sep 17 00:00:00 2001
From: Grahame Grieve <grahameg@gmail.ccom>
Date: Fri, 15 Sep 2023 10:14:06 -0700
Subject: [PATCH] fix NPE validating concept maps

---
 .../hl7/fhir/validation/instance/type/ConceptMapValidator.java  | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/org.hl7.fhir.validation/src/main/java/org/hl7/fhir/validation/instance/type/ConceptMapValidator.java b/org.hl7.fhir.validation/src/main/java/org/hl7/fhir/validation/instance/type/ConceptMapValidator.java
index f25047ef2..05585ed06 100644
--- a/org.hl7.fhir.validation/src/main/java/org/hl7/fhir/validation/instance/type/ConceptMapValidator.java
+++ b/org.hl7.fhir.validation/src/main/java/org/hl7/fhir/validation/instance/type/ConceptMapValidator.java
@@ -425,7 +425,7 @@ public class ConceptMapValidator  extends BaseValidator {
 
 
   private void addToBatch(Element code, NodeStack stack, CSReference system, VSReference scope) {
-    if (scope != null && scope.vs != null) {
+    if (scope != null && scope.vs != null && system != null) {
       Coding c = new Coding(system.url, code.primitiveValue(), null).setVersion(system.version);
       batch.add(new CMCodingValidationRequest(stack, c, scope.vs));
     }