diff --git a/src/main/java/de/uniluebeck/mi/projmi6/model/Icd10Code.java b/src/main/java/de/uniluebeck/mi/projmi6/model/Icd10Code.java
index b4c0964..45d9055 100644
--- a/src/main/java/de/uniluebeck/mi/projmi6/model/Icd10Code.java
+++ b/src/main/java/de/uniluebeck/mi/projmi6/model/Icd10Code.java
@@ -1,5 +1,5 @@
 package de.uniluebeck.mi.projmi6.model;
-
+import java.io.*;
 /**
  * A simple, immutable class that wraps an ICD10 code entry from the db.
  */
@@ -12,7 +12,7 @@ public class Icd10Code {
     private final int version;
 
 
-    public Icd10Code(String icd10Code, String text, int version){
+    public Icd10Code(String icd10Code, String text, int version) {
         this.code = icd10Code;
         this.text = text;
         this.version = version;
@@ -32,6 +32,18 @@ public class Icd10Code {
 
     @Override
     public String toString() {
-        return code+" - "+ text;
+        return code + " - " + text;
     }
-}
+
+
+    public boolean isLastElementANumber(Icd10Code icd10code) {
+        String lastElement = icd10code.getCode().substring(icd10code.getCode().length() - 1);
+        boolean isNumber = false;
+        char[] lastEl = lastElement.toCharArray();
+        if (Character.isDigit(lastEl[0])) {
+            isNumber = true;
+        }
+        return isNumber;
+    }
+
+}
\ No newline at end of file