diff --git a/dcm4chee-arc-hl7/src/main/java/org/dcm4chee/arc/hl7/PatientUpdateService.java b/dcm4chee-arc-hl7/src/main/java/org/dcm4chee/arc/hl7/PatientUpdateService.java
index 92bbd8b5c2..11b7c25c92 100644
--- a/dcm4chee-arc-hl7/src/main/java/org/dcm4chee/arc/hl7/PatientUpdateService.java
+++ b/dcm4chee-arc-hl7/src/main/java/org/dcm4chee/arc/hl7/PatientUpdateService.java
@@ -124,7 +124,6 @@ public UnparsedHL7Message onMessage(HL7Application hl7App, Connection conn, Sock
     static Patient updatePatient(HL7Application hl7App, Socket s, UnparsedHL7Message msg, PatientService patientService,
                                  ArchiveHL7Message archiveHL7Message)
             throws HL7Exception {
-        validateMSHIHERq(msg);
         ArchiveHL7ApplicationExtension arcHL7App =
                 hl7App.getHL7ApplicationExtension(ArchiveHL7ApplicationExtension.class);
 
@@ -156,47 +155,6 @@ static Patient updatePatient(HL7Application hl7App, Socket s, UnparsedHL7Message
         return changePIDOrMergePatient(patientService, ctx, archiveHL7Message, msg, arcHL7App);
     }
 
-    private static void validateMSHIHERq(UnparsedHL7Message msg) throws HL7Exception {
-        HL7Segment msh = msg.msh();
-        if (msh.getField(2, null) == null)
-            throw new HL7Exception(
-                    new ERRSegment(msh)
-                            .setHL7ErrorCode(ERRSegment.REQUIRED_FIELD_MISSING)
-                            .setErrorLocation(ERRSegment.SENDING_APPLICATION)
-                            .setUserMessage("Missing Sending Application"));
-        if (msh.getField(3, null) == null)
-            throw new HL7Exception(
-                    new ERRSegment(msh)
-                            .setHL7ErrorCode(ERRSegment.REQUIRED_FIELD_MISSING)
-                            .setErrorLocation(ERRSegment.SENDING_FACILITY)
-                            .setUserMessage("Missing Sending Facility"));
-        if (msh.getField(4, null) == null)
-            throw new HL7Exception(
-                    new ERRSegment(msh)
-                            .setHL7ErrorCode(ERRSegment.REQUIRED_FIELD_MISSING)
-                            .setErrorLocation(ERRSegment.RECEIVING_APPLICATION)
-                            .setUserMessage("Missing Receiving Application"));
-        if (msh.getField(5, null) == null)
-            throw new HL7Exception(
-                    new ERRSegment(msh)
-                            .setHL7ErrorCode(ERRSegment.REQUIRED_FIELD_MISSING)
-                            .setErrorLocation(ERRSegment.RECEIVING_FACILITY)
-                            .setUserMessage("Missing Receiving Facility"));
-        if (msh.getField(6, null) == null)
-            throw new HL7Exception(
-                    new ERRSegment(msh)
-                            .setHL7ErrorCode(ERRSegment.REQUIRED_FIELD_MISSING)
-                            .setErrorLocation(ERRSegment.MESSAGE_DATETIME)
-                            .setUserMessage("Missing Date/Time of Message"));
-
-        if (msh.getMessageControlID() == null)
-            throw new HL7Exception(
-                    new ERRSegment(msh)
-                            .setHL7ErrorCode(ERRSegment.REQUIRED_FIELD_MISSING)
-                            .setErrorLocation(ERRSegment.MESSAGE_CONTROL_ID)
-                            .setUserMessage("Missing Message Control ID"));
-    }
-
     private static Patient createOrUpdatePatient(
             PatientService patientService, PatientMgtContext ctx, ArchiveHL7Message archiveHL7Message,
             UnparsedHL7Message msg, ArchiveHL7ApplicationExtension arcHL7App) throws HL7Exception {