diff --git a/resources/exampleErrorResource.json b/resources/exampleErrorResource.json
index b1a4a7f..3045cde 100644
--- a/resources/exampleErrorResource.json
+++ b/resources/exampleErrorResource.json
@@ -1,18 +1,18 @@
 {
-  "description": "An extention to a RFC7807 compliant problem response for JSON APIs",
+  "description": "An extension to an (almost) RFC7807 compliant problem response for JSON APIs.",
 
   "type": "object",
 
   "properties": {
-    "type": {
+    "id": {
       "type": "string",
-      "format": "uri", 
-      "description": "Machine readable URI that uniquely defines the problem."
+      "description": "Machine readable URI that uniquely defines the problem (this field should really be called 'type')."
     },
     "status": {
       "type": "integer",
-      "description": "The HTTP status code applicable to this problem",
-      "format": "int32"
+      "description": "The HTTP status code applicable to this problem.",
+      "format": "int32",
+      "nullable": true
     },
     "title": {
       "type": "string",
@@ -24,24 +24,8 @@
     },
     "instance": {
       "type": "string",
-      "description": "A URI reference or internal JSON document reference to the specific data resource that caused the problem."
-    },
-    "instanceIdentification": {
-      "type": "object",
-      "properties": {
-        "source": {
-          "type": "string",
-          "description": "Identifies the source of the resource as contained in the resource metadata."
-        },
-        "sourceId": {
-          "type": "string",
-          "description": "Identifies the resource using its source identifier as contained in the resource metadata."
-        },
-        "hostId": {
-          "type": "string",
-          "description": "If specified, identifies the resource with a unique Id (UUID) in the host system."
-        }
-      }
+      "description": "A URI reference or internal JSON document reference to the specific data item that caused the problem.",
+      "nullable": true
     }
   }
 }
\ No newline at end of file
diff --git a/resources/icarBatchResult.json b/resources/icarBatchResult.json
new file mode 100644
index 0000000..a064c83
--- /dev/null
+++ b/resources/icarBatchResult.json
@@ -0,0 +1,30 @@
+{
+    "description": "Returned by a batch POST event to return identity (meta), errors, and warnings for a resource.",
+    "type": "object",
+    "properties": {
+        "id": {
+            "type": "string",
+            "description": "Unique identifier created in the system for this event. SHOULD be a UUID."
+        },
+        "meta": {
+            "$ref": "../types/icarMetaDataType.json",
+            "description": "Metadata for the posted resource. Allows specification of the source, source Id to synchronise data."
+        },        
+        "errors": {
+            "type": "array",
+            "description": "An arry of errors for this resource.",
+            "nullable": true,
+            "items": {
+                "$ref": "../resources/icarErrorResource.json"
+            }
+        },
+        "warnings": {
+            "type": "array",
+            "description": "An arry of warnings for this resource.",
+            "nullable": true,
+            "items": {
+                "$ref": "../resources/icarErrorResource.json"
+            }
+        }
+    }
+}
\ No newline at end of file
diff --git a/resources/icarErrorResource.json b/resources/icarErrorResource.json
new file mode 100644
index 0000000..aab32e3
--- /dev/null
+++ b/resources/icarErrorResource.json
@@ -0,0 +1,31 @@
+{
+  "description": "An RFC7807 compliant problem response for JSON APIs.",
+
+  "type": "object",
+
+  "properties": {
+    "type": {
+      "type": "string",
+      "description": "Machine readable URI or code that defines the type of error or warning."
+    },
+    "status": {
+      "type": "integer",
+      "description": "The HTTP status code applicable to this problem.",
+      "format": "int32",
+      "nullable": true
+    },
+    "title": {
+      "type": "string",
+      "description": "A short, human-readable summary of the problem that SHOULD NOT change from occurrence to occurrence of the problem, except for purposes of localization."
+    },
+    "detail": {
+      "type": "string",
+      "description": "A human-readable explanation specific to this occurrence of the problem. Like title, this field’s value can be localized."
+    },
+    "instance": {
+      "type": "string",
+      "description": "A URI reference or internal JSON document reference to the specific data item that caused the problem.",
+      "nullable": true
+    }
+  }
+}
\ No newline at end of file
diff --git a/url-schemes/healthURLScheme.json b/url-schemes/healthURLScheme.json
index 73b4126..586fa0b 100644
--- a/url-schemes/healthURLScheme.json
+++ b/url-schemes/healthURLScheme.json
@@ -319,35 +319,35 @@
         ],
         "requestBody": {
           "required": true,
-          "description": "The collection of health diagnosis events to create. \nA client MAY fill in resource *Id*s with a client-generated UUID and the server MAY use these *Id*s.\nIf the server does not use the client-specified *Id* field it shall issue its own *Id*s for the resources.\nA client SHALL ensure that the *meta.source* and *meta.sourceId* fields are filled by the client.\nAlthough a collection is used, servers SHALL IGNORE any pagination-related attributes.\n",
+          "description": "The collection of health diagnosis events to create. \nA client MAY fill in resource *Id*s with a client-generated UUID and the server MAY use these *Id*s.\nIf the server does not use the client-specified *Id* field it shall issue its own *Id*s for the resources.\nA client SHALL ensure that the *meta.source* and *meta.sourceId* fields are filled by the client.\n",
           "content": {
             "application/json": {
               "schema": {
-                "$ref": "#/components/schemas/icarDiagnosisEventCollection"
+                "$ref": "#/components/schemas/icarDiagnosisEventArray"
               }
             }
           }
         },
         "responses": {
           "200": {
-            "description": "Successful. The response contains a copy of the collection, as modifed by the server.",
+            "description": "Successful. The response contains a set of batch results, which may include warnings.",
             "content": {
               "application/json": {
                 "schema": {
-                  "$ref": "#/components/schemas/icarDiagnosisEventCollection"
+                  "$ref": "#/components/schemas/batchResults"
                 }
               }
             }
           },
           "201": {
-            "description": "Created. The Location header contains the URI to the collection, as modified by the server.",
+            "description": "Created. The Location header contains URI to retrieve a set of batch results, which may include warnings.",
             "headers": {
               "Location": {
                 "schema": {
                   "type": "string",
                   "format": "uri"
                 },
-                "description": "Contains the URI to the new resource."
+                "description": "Contains the URI to the results."
               }
             }
           },
@@ -364,7 +364,14 @@
             }
           },
           "default": {
-            "$ref": "#/components/responses/default"
+            "description": "The response contains a set of batch results, which may include errors and warnings.",
+            "content": {
+              "application/json": {
+                "schema": {
+                  "$ref": "#/components/schemas/batchResults"
+                }
+              }
+            }
           }
         }
       }
@@ -387,35 +394,35 @@
         ],
         "requestBody": {
           "required": true,
-          "description": "The collection of health treatment events to create. \nA client MAY fill in resource *Id*s with a client-generated UUID and the server MAY use these *Id*s.\nIf the server does not use the client-specified *Id* field it shall issue its own *Id*s for the resources.\nA client SHALL ensure that the *meta.source* and *meta.sourceId* fields are filled by the client.\nAlthough a collection is used, servers SHALL IGNORE any pagination-related attributes.\n",
+          "description": "The collection of health treatment events to create. \nA client MAY fill in resource *Id*s with a client-generated UUID and the server MAY use these *Id*s.\nIf the server does not use the client-specified *Id* field it shall issue its own *Id*s for the resources.\nA client SHALL ensure that the *meta.source* and *meta.sourceId* fields are filled by the client.\n",
           "content": {
             "application/json": {
               "schema": {
-                "$ref": "#/components/schemas/icarTreatmentEventCollection"
+                "$ref": "#/components/schemas/icarTreatmentEventArray"
               }
             }
           }
         },
         "responses": {
           "200": {
-            "description": "Successful. The response contains a copy of the collection, as modifed by the server.",
+            "description": "Successful. The response contains a set of batch results, which may include warnings.",
             "content": {
               "application/json": {
                 "schema": {
-                  "$ref": "#/components/schemas/icarDiagnosisEventCollection"
+                  "$ref": "#/components/schemas/batchResults"
                 }
               }
             }
           },
           "201": {
-            "description": "Created. The Location header contains the URI to the collection, as modified by the server.",
+            "description": "Created. The Location header contains URI to retrieve a set of batch results, which may include warnings.",
             "headers": {
               "Location": {
                 "schema": {
                   "type": "string",
                   "format": "uri"
                 },
-                "description": "Contains the URI to a collection of new resources."
+                "description": "Contains the URI to the results."
               }
             }
           },
@@ -432,7 +439,14 @@
             }
           },
           "default": {
-            "$ref": "#/components/responses/default"
+            "description": "The response contains a set of batch results, which may include errors and warnings.",
+            "content": {
+              "application/json": {
+                "schema": {
+                  "$ref": "#/components/schemas/batchResults"
+                }
+              }
+            }
           }
         }
       }
@@ -455,35 +469,35 @@
         ],
         "requestBody": {
           "required": true,
-          "description": "The collection of health treatment program events to create. \nA client MAY fill in resource *Id*s with a client-generated UUID and the server MAY use these *Id*s.\nIf the server does not use the client-specified *Id* field it shall issue its own *Id*s for the resources.\nA client SHALL ensure that the *meta.source* and *meta.sourceId* fields are filled by the client.\nAlthough a collection is used, servers SHALL IGNORE any pagination-related attributes.\n",
+          "description": "The collection of health treatment program events to create. \nA client MAY fill in resource *Id*s with a client-generated UUID and the server MAY use these *Id*s.\nIf the server does not use the client-specified *Id* field it shall issue its own *Id*s for the resources.\nA client SHALL ensure that the *meta.source* and *meta.sourceId* fields are filled by the client.\n",
           "content": {
             "application/json": {
               "schema": {
-                "$ref": "#/components/schemas/icarTreatmentProgramEventCollection"
+                "$ref": "#/components/schemas/icarTreatmentProgramEventArray"
               }
             }
           }
         },
         "responses": {
           "200": {
-            "description": "Successful. The response contains a copy of the collection, as modifed by the server.",
+            "description": "Successful. The response contains a set of batch results, which may include warnings.",
             "content": {
               "application/json": {
                 "schema": {
-                  "$ref": "#/components/schemas/icarTreatmentProgramEventCollection"
+                  "$ref": "#/components/schemas/batchResults"
                 }
               }
             }
           },
           "201": {
-            "description": "Created. The Location header contains the URI to the collection, as modified by the server.",
+            "description": "Created. The Location header contains URI to retrieve a set of batch results, which may include warnings.",
             "headers": {
               "Location": {
                 "schema": {
                   "type": "string",
                   "format": "uri"
                 },
-                "description": "Contains the URI to a collection of new resources."
+                "description": "Contains the URI to the results."
               }
             }
           },
@@ -500,7 +514,14 @@
             }
           },
           "default": {
-            "$ref": "#/components/responses/default"
+            "description": "The response contains a set of batch results, which may include errors and warnings.",
+            "content": {
+              "application/json": {
+                "schema": {
+                  "$ref": "#/components/schemas/batchResults"
+                }
+              }
+            }
           }
         }
       }
@@ -508,8 +529,14 @@
   },
   "components": {
     "schemas": {
+      "batchResults": {
+        "type": "array",
+        "items": {
+          "$ref": "../resources/icarBatchResult.json"
+        }
+      },
       "error": {
-        "$ref": "../resources/exampleErrorResource.json"
+        "$ref": "../resources/icarErrorResource.json"
       },
       "icarDiagnosisEvent": {
         "$ref": "../resources/icarDiagnosisEventResource.json"
@@ -517,17 +544,35 @@
       "icarDiagnosisEventCollection": {
         "$ref": "../collections/icarDiagnosisEventCollection.json"
       },
+      "icarDiagnosisEventArray": {
+        "type": "array",
+        "items": {
+          "$ref": "../resources/icarDiagnosisEventResource.json"
+        }
+      },
       "icarTreatmentEvent": {
         "$ref": "../resources/icarTreatmentEventResource.json"
       },
       "icarTreatmentEventCollection": {
         "$ref": "../collections/icarTreatmentEventCollection.json"
       },
+      "icarTreatmentEventArray": {
+        "type": "array",
+        "items": {
+          "$ref": "../resources/icarTreatmentEventResource.json"
+        }
+      },
       "icarTreatmentProgramEvent": {
         "$ref": "../resources/icarTreatmentProgramEventResource.json"
       },
       "icarTreatmentProgramEventCollection": {
         "$ref": "../collections/icarTreatmentProgramEventCollection.json"
+      },
+      "icarTreatmentProgramEventArray": {
+        "type": "array",
+        "items": {
+          "$ref": "../resources/icarTreatmentProgramEventResource.json"
+        }
       }
     },
     "parameters": {