diff --git a/Bundle/Bundle-NonWGSTestOrderForm-CancerSolidTumor-Example.json b/Bundle/Bundle-NonWGSTestOrderForm-CancerSolidTumor-Example.json
index de87a62..c179dbe 100644
--- a/Bundle/Bundle-NonWGSTestOrderForm-CancerSolidTumor-Example.json
+++ b/Bundle/Bundle-NonWGSTestOrderForm-CancerSolidTumor-Example.json
@@ -316,8 +316,8 @@
           "coding": [
             {
               "system": "http://snomed.info/sct",
-              "code": "128462008",
-              "display": "Metastatic malignant neoplasm"
+              "code": "371510003",
+              "display": "Proportion of specimen involved by tumour"
             }
           ]
         },
@@ -371,8 +371,8 @@
           "coding": [
             {
               "system": "http://snomed.info/sct",
-              "code": "6574001",
-              "display": "Necrosis"
+              "code": "405921002",
+              "display": "Percentage of neoplasm involved by necrosis"
             }
           ]
         },
diff --git a/Observation/Observation-NeoplasticCell-Example.json b/Observation/Observation-NeoplasticCell-Example.json
index 69e95a8..926cdf8 100644
--- a/Observation/Observation-NeoplasticCell-Example.json
+++ b/Observation/Observation-NeoplasticCell-Example.json
@@ -3,7 +3,13 @@
   "id": "Observation-NeoplasticCell-Example",
   "status": "final",
   "code": {
-    "text":"Approximate Neoplastic cell % in sample"
+    "coding": [
+      {
+        "system": "http://snomed.info/sct",
+        "code": "371510003",
+        "display": "Proportion of specimen involved by tumour"
+      }
+    ]
   },
   "subject": {
     "reference": "Patient/Patient-ZelmaHadjkiss-Example",
diff --git a/Observation/Observation-NeoplasticCellKayBurbridge-Example.json b/Observation/Observation-NeoplasticCellKayBurbridge-Example.json
index 066ba4f..b74356f 100644
--- a/Observation/Observation-NeoplasticCellKayBurbridge-Example.json
+++ b/Observation/Observation-NeoplasticCellKayBurbridge-Example.json
@@ -3,7 +3,13 @@
   "id": "Observation-NeoplasticCellKayBurbridge-Example",
   "status": "final",
   "code": {
-    "text": "Approximate Neoplastic cell % in sample"
+    "coding": [
+      {
+        "system": "http://snomed.info/sct",
+        "code": "371510003",
+        "display": "Proportion of specimen involved by tumour"
+      }
+    ]
   },
   "subject": {
     "reference": "Patient/Patient-KayBurbridge-Example",