diff --git a/lib/athena_health/lab_result.rb b/lib/athena_health/lab_result.rb
index <HASH>..<HASH> 100644
--- a/lib/athena_health/lab_result.rb
+++ b/lib/athena_health/lab_result.rb
@@ -5,5 +5,6 @@ module AthenaHealth
     attribute :labresultid,        Integer
     attribute :analytes,           Array[Analyte]
     attribute :description,        String
+    attribute :orderid,            Integer
   end
 end
diff --git a/spec/lib/lab_result_spec.rb b/spec/lib/lab_result_spec.rb
index <HASH>..<HASH> 100644
--- a/spec/lib/lab_result_spec.rb
+++ b/spec/lib/lab_result_spec.rb
@@ -15,7 +15,8 @@ describe AthenaHealth::LabResult do
           'analytedate': '09\/17\/2010'
         }
       ],
-      'description': 'lab result'
+      'description': 'lab result',
+      'orderid': '305'
     }
   end
 
@@ -28,7 +29,8 @@ describe AthenaHealth::LabResult do
       labresultdate: '04\/21\/2011',
       labresultnote: 'sample note',
       labresultid: 3265,
-      description: 'lab result'
+      description: 'lab result',
+      orderid: 305
     )
 
     expect(subject.analytes.map(&:class)).to eq [AthenaHealth::Analyte]
Add missing attributes to lab_result class