diff --git a/api/src/main/java/org/openmrs/module/labintegration/api/hl7/messages/gnerators/pid/PidIdHelper.java b/api/src/main/java/org/openmrs/module/labintegration/api/hl7/messages/gnerators/pid/PidIdHelper.java
index b6f8704..8048de2 100644
--- a/api/src/main/java/org/openmrs/module/labintegration/api/hl7/messages/gnerators/pid/PidIdHelper.java
+++ b/api/src/main/java/org/openmrs/module/labintegration/api/hl7/messages/gnerators/pid/PidIdHelper.java
@@ -42,10 +42,7 @@ public void updateIdNumber(PID pid, Patient patient, HL7Config hl7Config, Encoun
 		}
 
 		if (isanteIdentifier == null) {
-
-			pid.getPatientID().getIDNumber().setValue(siteCode + patient.getPatientId().toString());
-			// pid.getPatientID().getIDNumber().setValue(patient.getUuid());
-
+			pid.getPatientID().getIDNumber().setValue(siteCode + "4" + patient.getPatientId().toString());
 		}