diff --git a/src/main/java/DNPM/services/systemtherapie/SystemtherapieService.java b/src/main/java/DNPM/services/systemtherapie/SystemtherapieService.java
index 0102fc6..a664c05 100644
--- a/src/main/java/DNPM/services/systemtherapie/SystemtherapieService.java
+++ b/src/main/java/DNPM/services/systemtherapie/SystemtherapieService.java
@@ -60,6 +60,7 @@ public interface SystemtherapieService {
 
         private boolean isValidEcogCode(String status) {
             switch (status) {
+                case "0":
                 case "1":
                 case "2":
                 case "3":