diff --git a/ems-core/src/main/java/it/integry/ems/migration/model/Migration_20251119084719.java b/ems-core/src/main/java/it/integry/ems/migration/model/Migration_20251119084719.java
new file mode 100644
index 0000000000..8d75ed2483
--- /dev/null
+++ b/ems-core/src/main/java/it/integry/ems/migration/model/Migration_20251119084719.java
@@ -0,0 +1,19 @@
+package it.integry.ems.migration.model;
+
+import it.integry.ems.migration._base.BaseMigration;
+import it.integry.ems.migration._base.MigrationModelInterface;
+
+public class Migration_20251119084719 extends BaseMigration implements MigrationModelInterface {
+
+    @Override
+    public void up() throws Exception {
+        if (isHistoryDB())
+            return;
+
+        executeStatement("alter table dtb_note_doc add flag_bio bit not null default 0");
+    }
+
+    @Override
+    public void down() throws Exception {
+    }
+}
\ No newline at end of file
diff --git a/ems-core/src/main/java/it/integry/ems_model/entity/DtbNoteDoc.java b/ems-core/src/main/java/it/integry/ems_model/entity/DtbNoteDoc.java
index 82a109e60c..c55e9b9063 100644
--- a/ems-core/src/main/java/it/integry/ems_model/entity/DtbNoteDoc.java
+++ b/ems-core/src/main/java/it/integry/ems_model/entity/DtbNoteDoc.java
@@ -41,6 +41,9 @@ public class DtbNoteDoc extends EntityBase {
     @SqlField(value = "data_fine")
     private Date dataFine;
 
+    @SqlField(value = "flag_bio", nullable = false, defaultObjectValue = "0")
+    private Boolean flagBio;
+
     @EntityChild
     private List<DrlTipiNoteDoc> drlTipiNoteDoc = new ArrayList<>();
 
@@ -78,6 +81,15 @@ public class DtbNoteDoc extends EntityBase {
         this.dataFine = dataFine;
     }
 
+    public Boolean getFlagBio() {
+        return flagBio;
+    }
+
+    public DtbNoteDoc setFlagBio(Boolean flagBio) {
+        this.flagBio = flagBio;
+        return this;
+    }
+
     public List<DrlTipiNoteDoc> getDrlTipiNoteDoc() {
         return drlTipiNoteDoc;
     }