diff --git a/sdk/healthcareapis/azure-mgmt-healthcareapis/azure/mgmt/healthcareapis/_healthcare_apis_management_client.py b/sdk/healthcareapis/azure-mgmt-healthcareapis/azure/mgmt/healthcareapis/_healthcare_apis_management_client.py
index 61807f835bc4..f9b79f316c3b 100644
--- a/sdk/healthcareapis/azure-mgmt-healthcareapis/azure/mgmt/healthcareapis/_healthcare_apis_management_client.py
+++ b/sdk/healthcareapis/azure-mgmt-healthcareapis/azure/mgmt/healthcareapis/_healthcare_apis_management_client.py
@@ -47,7 +47,7 @@ def __init__(
         super(HealthcareApisManagementClient, self).__init__(self.config.credentials, self.config)
 
         client_models = {k: v for k, v in models.__dict__.items() if isinstance(v, type)}
-        self.api_version = '2018-08-20-preview'
+        self.api_version = '2019-09-16'
         self._serialize = Serializer(client_models)
         self._deserialize = Deserializer(client_models)
 
diff --git a/sdk/healthcareapis/azure-mgmt-healthcareapis/azure/mgmt/healthcareapis/models/_models.py b/sdk/healthcareapis/azure-mgmt-healthcareapis/azure/mgmt/healthcareapis/models/_models.py
index 5993183ed587..b04ea49e2878 100644
--- a/sdk/healthcareapis/azure-mgmt-healthcareapis/azure/mgmt/healthcareapis/models/_models.py
+++ b/sdk/healthcareapis/azure-mgmt-healthcareapis/azure/mgmt/healthcareapis/models/_models.py
@@ -240,9 +240,8 @@ class Resource(Model):
     :vartype name: str
     :ivar type: The resource type.
     :vartype type: str
-    :param kind: Required. The kind of the service. Valid values are: fhir,
-     fhir-Stu3 and fhir-R4. Possible values include: 'fhir', 'fhir-Stu3',
-     'fhir-R4'
+    :param kind: Required. The kind of the service. Possible values include:
+     'fhir', 'fhir-Stu3', 'fhir-R4'
     :type kind: str or ~azure.mgmt.healthcareapis.models.Kind
     :param location: Required. The resource location.
     :type location: str
@@ -287,8 +286,8 @@ class ServiceAccessPolicyEntry(Model):
 
     All required parameters must be populated in order to send to Azure.
 
-    :param object_id: Required. An object ID that is allowed access to the
-     FHIR service.
+    :param object_id: Required. An Azure AD object ID (User or Apps) that is
+     allowed access to the FHIR service.
     :type object_id: str
     """
 
@@ -400,9 +399,8 @@ class ServicesDescription(Resource):
     :vartype name: str
     :ivar type: The resource type.
     :vartype type: str
-    :param kind: Required. The kind of the service. Valid values are: fhir,
-     fhir-Stu3 and fhir-R4. Possible values include: 'fhir', 'fhir-Stu3',
-     'fhir-R4'
+    :param kind: Required. The kind of the service. Possible values include:
+     'fhir', 'fhir-Stu3', 'fhir-R4'
     :type kind: str or ~azure.mgmt.healthcareapis.models.Kind
     :param location: Required. The resource location.
     :type location: str
diff --git a/sdk/healthcareapis/azure-mgmt-healthcareapis/azure/mgmt/healthcareapis/models/_models_py3.py b/sdk/healthcareapis/azure-mgmt-healthcareapis/azure/mgmt/healthcareapis/models/_models_py3.py
index 8070f9eec9dc..fc387153882d 100644
--- a/sdk/healthcareapis/azure-mgmt-healthcareapis/azure/mgmt/healthcareapis/models/_models_py3.py
+++ b/sdk/healthcareapis/azure-mgmt-healthcareapis/azure/mgmt/healthcareapis/models/_models_py3.py
@@ -240,9 +240,8 @@ class Resource(Model):
     :vartype name: str
     :ivar type: The resource type.
     :vartype type: str
-    :param kind: Required. The kind of the service. Valid values are: fhir,
-     fhir-Stu3 and fhir-R4. Possible values include: 'fhir', 'fhir-Stu3',
-     'fhir-R4'
+    :param kind: Required. The kind of the service. Possible values include:
+     'fhir', 'fhir-Stu3', 'fhir-R4'
     :type kind: str or ~azure.mgmt.healthcareapis.models.Kind
     :param location: Required. The resource location.
     :type location: str
@@ -287,8 +286,8 @@ class ServiceAccessPolicyEntry(Model):
 
     All required parameters must be populated in order to send to Azure.
 
-    :param object_id: Required. An object ID that is allowed access to the
-     FHIR service.
+    :param object_id: Required. An Azure AD object ID (User or Apps) that is
+     allowed access to the FHIR service.
     :type object_id: str
     """
 
@@ -400,9 +399,8 @@ class ServicesDescription(Resource):
     :vartype name: str
     :ivar type: The resource type.
     :vartype type: str
-    :param kind: Required. The kind of the service. Valid values are: fhir,
-     fhir-Stu3 and fhir-R4. Possible values include: 'fhir', 'fhir-Stu3',
-     'fhir-R4'
+    :param kind: Required. The kind of the service. Possible values include:
+     'fhir', 'fhir-Stu3', 'fhir-R4'
     :type kind: str or ~azure.mgmt.healthcareapis.models.Kind
     :param location: Required. The resource location.
     :type location: str
diff --git a/sdk/healthcareapis/azure-mgmt-healthcareapis/azure/mgmt/healthcareapis/operations/_operation_results_operations.py b/sdk/healthcareapis/azure-mgmt-healthcareapis/azure/mgmt/healthcareapis/operations/_operation_results_operations.py
index 7050fa3cc564..ef3a56b62b47 100644
--- a/sdk/healthcareapis/azure-mgmt-healthcareapis/azure/mgmt/healthcareapis/operations/_operation_results_operations.py
+++ b/sdk/healthcareapis/azure-mgmt-healthcareapis/azure/mgmt/healthcareapis/operations/_operation_results_operations.py
@@ -24,7 +24,7 @@ class OperationResultsOperations(object):
     :param config: Configuration of service client.
     :param serializer: An object model serializer.
     :param deserializer: An object model deserializer.
-    :ivar api_version: The version of the API. Constant value: "2018-08-20-preview".
+    :ivar api_version: Client Api Version. Constant value: "2019-09-16".
     """
 
     models = models
@@ -34,7 +34,7 @@ def __init__(self, client, config, serializer, deserializer):
         self._client = client
         self._serialize = serializer
         self._deserialize = deserializer
-        self.api_version = "2018-08-20-preview"
+        self.api_version = "2019-09-16"
 
         self.config = config
 
@@ -67,7 +67,7 @@ def get(
 
         # Construct parameters
         query_parameters = {}
-        query_parameters['api-version'] = self._serialize.query("self.api_version", self.api_version, 'str', min_length=10)
+        query_parameters['api-version'] = self._serialize.query("self.api_version", self.api_version, 'str')
 
         # Construct headers
         header_parameters = {}
diff --git a/sdk/healthcareapis/azure-mgmt-healthcareapis/azure/mgmt/healthcareapis/operations/_operations.py b/sdk/healthcareapis/azure-mgmt-healthcareapis/azure/mgmt/healthcareapis/operations/_operations.py
index e60e1aff1e7d..8182301e6ab9 100644
--- a/sdk/healthcareapis/azure-mgmt-healthcareapis/azure/mgmt/healthcareapis/operations/_operations.py
+++ b/sdk/healthcareapis/azure-mgmt-healthcareapis/azure/mgmt/healthcareapis/operations/_operations.py
@@ -24,7 +24,7 @@ class Operations(object):
     :param config: Configuration of service client.
     :param serializer: An object model serializer.
     :param deserializer: An object model deserializer.
-    :ivar api_version: The version of the API. Constant value: "2018-08-20-preview".
+    :ivar api_version: Client Api Version. Constant value: "2019-09-16".
     """
 
     models = models
@@ -34,7 +34,7 @@ def __init__(self, client, config, serializer, deserializer):
         self._client = client
         self._serialize = serializer
         self._deserialize = deserializer
-        self.api_version = "2018-08-20-preview"
+        self.api_version = "2019-09-16"
 
         self.config = config
 
@@ -60,7 +60,7 @@ def prepare_request(next_link=None):
 
                 # Construct parameters
                 query_parameters = {}
-                query_parameters['api-version'] = self._serialize.query("self.api_version", self.api_version, 'str', min_length=10)
+                query_parameters['api-version'] = self._serialize.query("self.api_version", self.api_version, 'str')
 
             else:
                 url = next_link
diff --git a/sdk/healthcareapis/azure-mgmt-healthcareapis/azure/mgmt/healthcareapis/operations/_services_operations.py b/sdk/healthcareapis/azure-mgmt-healthcareapis/azure/mgmt/healthcareapis/operations/_services_operations.py
index 76ee198c35a8..91f769486647 100644
--- a/sdk/healthcareapis/azure-mgmt-healthcareapis/azure/mgmt/healthcareapis/operations/_services_operations.py
+++ b/sdk/healthcareapis/azure-mgmt-healthcareapis/azure/mgmt/healthcareapis/operations/_services_operations.py
@@ -26,7 +26,7 @@ class ServicesOperations(object):
     :param config: Configuration of service client.
     :param serializer: An object model serializer.
     :param deserializer: An object model deserializer.
-    :ivar api_version: The version of the API. Constant value: "2018-08-20-preview".
+    :ivar api_version: Client Api Version. Constant value: "2019-09-16".
     """
 
     models = models
@@ -36,7 +36,7 @@ def __init__(self, client, config, serializer, deserializer):
         self._client = client
         self._serialize = serializer
         self._deserialize = deserializer
-        self.api_version = "2018-08-20-preview"
+        self.api_version = "2019-09-16"
 
         self.config = config
 
@@ -71,7 +71,7 @@ def get(
 
         # Construct parameters
         query_parameters = {}
-        query_parameters['api-version'] = self._serialize.query("self.api_version", self.api_version, 'str', min_length=10)
+        query_parameters['api-version'] = self._serialize.query("self.api_version", self.api_version, 'str')
 
         # Construct headers
         header_parameters = {}
@@ -115,7 +115,7 @@ def _create_or_update_initial(
 
         # Construct parameters
         query_parameters = {}
-        query_parameters['api-version'] = self._serialize.query("self.api_version", self.api_version, 'str', min_length=10)
+        query_parameters['api-version'] = self._serialize.query("self.api_version", self.api_version, 'str')
 
         # Construct headers
         header_parameters = {}
@@ -220,7 +220,7 @@ def _update_initial(
 
         # Construct parameters
         query_parameters = {}
-        query_parameters['api-version'] = self._serialize.query("self.api_version", self.api_version, 'str', min_length=10)
+        query_parameters['api-version'] = self._serialize.query("self.api_version", self.api_version, 'str')
 
         # Construct headers
         header_parameters = {}
@@ -320,7 +320,7 @@ def _delete_initial(
 
         # Construct parameters
         query_parameters = {}
-        query_parameters['api-version'] = self._serialize.query("self.api_version", self.api_version, 'str', min_length=10)
+        query_parameters['api-version'] = self._serialize.query("self.api_version", self.api_version, 'str')
 
         # Construct headers
         header_parameters = {}
@@ -411,7 +411,7 @@ def prepare_request(next_link=None):
 
                 # Construct parameters
                 query_parameters = {}
-                query_parameters['api-version'] = self._serialize.query("self.api_version", self.api_version, 'str', min_length=10)
+                query_parameters['api-version'] = self._serialize.query("self.api_version", self.api_version, 'str')
 
             else:
                 url = next_link
@@ -480,7 +480,7 @@ def prepare_request(next_link=None):
 
                 # Construct parameters
                 query_parameters = {}
-                query_parameters['api-version'] = self._serialize.query("self.api_version", self.api_version, 'str', min_length=10)
+                query_parameters['api-version'] = self._serialize.query("self.api_version", self.api_version, 'str')
 
             else:
                 url = next_link
@@ -550,7 +550,7 @@ def check_name_availability(
 
         # Construct parameters
         query_parameters = {}
-        query_parameters['api-version'] = self._serialize.query("self.api_version", self.api_version, 'str', min_length=10)
+        query_parameters['api-version'] = self._serialize.query("self.api_version", self.api_version, 'str')
 
         # Construct headers
         header_parameters = {}