diff --git a/hapi-fhir-base/src/main/java/ca/uhn/fhir/model/primitive/IdDt.java b/hapi-fhir-base/src/main/java/ca/uhn/fhir/model/primitive/IdDt.java
index 68e1ffd38aa..878d4d56ea5 100644
--- a/hapi-fhir-base/src/main/java/ca/uhn/fhir/model/primitive/IdDt.java
+++ b/hapi-fhir-base/src/main/java/ca/uhn/fhir/model/primitive/IdDt.java
@@ -400,4 +400,12 @@ public class IdDt extends BasePrimitive<String> {
 		return new IdDt(value + '/' + Constants.PARAM_HISTORY + '/' + theVersion);
 	}
 
+	/**
+	 * @deprecated Use {@link #getIdPartAsBigDecimal()} instead
+	 */
+	public BigDecimal asBigDecimal() {
+		// TODO Auto-generated method stub
+		return null;
+	}
+
 }