diff --git a/assets/javascripts/discourse/initializers/custom-wizard-edits.js.es6 b/assets/javascripts/discourse/initializers/custom-wizard-edits.js.es6
index c974fafb..bd3c3d2d 100644
--- a/assets/javascripts/discourse/initializers/custom-wizard-edits.js.es6
+++ b/assets/javascripts/discourse/initializers/custom-wizard-edits.js.es6
@@ -83,6 +83,16 @@ export default {
           }
         },
       });
+
+      api.modifyClass("component:category-chooser", {
+        categoriesByScope(options = {}) {
+          let categories = this._super(options);
+
+          return categories.filter((category) => {
+            return !category.custom_fields?.create_topic_wizard;
+          });
+        },
+      });
     });
   },
 };
diff --git a/config/locales/server.en.yml b/config/locales/server.en.yml
index e8ceb44b..9fa23d53 100644
--- a/config/locales/server.en.yml
+++ b/config/locales/server.en.yml
@@ -55,6 +55,8 @@ en:
       liquid_syntax_error: "Liquid syntax error in %{attribute}: %{message}"
       subscription: "%{type} %{property} usage is not supported on your subscription"
       not_permitted_for_guests: "%{object_id} is not permitted when guests can access the wizard"
+    error_messages:
+      wizard_replacing_composer: "Category not allowed for topic creation."
 
   site_settings:
     custom_wizard_enabled: "Enable custom wizards."
diff --git a/plugin.rb b/plugin.rb
index 0634ef8c..7d3f7679 100644
--- a/plugin.rb
+++ b/plugin.rb
@@ -1,7 +1,7 @@
 # frozen_string_literal: true
 # name: discourse-custom-wizard
 # about: Forms for Discourse. Better onboarding, structured posting, data enrichment, automated actions and much more.
-# version: 2.4.22
+# version: 2.4.23
 # authors: Angus McLeod, Faizaan Gagan, Robert Barrow, Keegan George, Kaitlin Maddever, Juan Marcos Gutierrez Ramos
 # url: https://github.com/paviliondev/discourse-custom-wizard
 # contact_emails: development@pavilion.tech
@@ -236,4 +236,13 @@ after_initialize do
   end
 
   DiscourseEvent.trigger(:custom_wizard_ready)
+
+  on(:before_create_topic) do |topic_params, user|
+    category = topic_params.category
+    if category&.custom_fields&.[]('create_topic_wizard').present?
+      raise Discourse::InvalidParameters.new(
+              I18n.t('wizard.error_messages.wizard_replacing_composer')
+            )
+    end
+  end
 end
diff --git a/spec/extensions/topic_extension_spec.rb b/spec/extensions/topic_extension_spec.rb
new file mode 100644
index 00000000..da4f416e
--- /dev/null
+++ b/spec/extensions/topic_extension_spec.rb
@@ -0,0 +1,45 @@
+# frozen_string_literal: true
+
+describe Topic, type: :model do
+  fab!(:category_with_wizard) do
+    Fabricate(:category, custom_fields: { create_topic_wizard: 'true' })
+  end
+  fab!(:category_without_wizard) { Fabricate(:category) }
+  fab!(:user) { Fabricate(:user) }
+  let(:valid_attrs) { Fabricate.attributes_for(:topic) }
+
+  context 'with a create_topic_wizard custom field in the category' do
+    it 'will not allow creating a topic directly' do
+      expect do
+        TopicCreator.create(
+          user,
+          Guardian.new(user),
+          valid_attrs.merge(
+            title: 'A valid and sufficiently long title for testing',
+            category: category_with_wizard.id,
+            raw: 'hello this is a test topic with category with custom fields'
+          )
+        )
+      end.to raise_error(
+        Discourse::InvalidParameters,
+        'Category not allowed for topic creation.'
+      )
+    end
+  end
+
+  context 'without a create_topic_wizard custom field in the category' do
+    it 'will allow creating a topic directly' do
+      expect do
+        TopicCreator.create(
+          user,
+          Guardian.new(user),
+          valid_attrs.merge(
+            category: category_without_wizard.id,
+            title: 'Another valid and sufficiently long title for testing',
+            raw: 'This is the body of a valid topic'
+          )
+        )
+      end.not_to raise_error
+    end
+  end
+end
diff --git a/test/javascripts/acceptance/category-chooser-initializer-test.js b/test/javascripts/acceptance/category-chooser-initializer-test.js
new file mode 100644
index 00000000..f7e02bb8
--- /dev/null
+++ b/test/javascripts/acceptance/category-chooser-initializer-test.js
@@ -0,0 +1,82 @@
+import { click, visit } from "@ember/test-helpers";
+import { acceptance } from "discourse/tests/helpers/qunit-helpers";
+import selectKit from "discourse/tests/helpers/select-kit-helper";
+import { test } from "qunit";
+
+acceptance("Category Chooser Initializer", function (needs) {
+  needs.user();
+  needs.settings({
+    allow_uncategorized_topics: false,
+  });
+  needs.site({
+    can_tag_topics: true,
+    categories: [
+      {
+        id: 1,
+        name: "General",
+        slug: "general",
+        permission: 1,
+        topic_template: null,
+      },
+      {
+        id: 2,
+        name: "Category with custom field",
+        slug: "category-custom-field",
+        permission: 1,
+        topic_template: "",
+        custom_fields: {
+          create_topic_wizard: "21",
+        },
+      },
+      {
+        id: 3,
+        name: "Category 1",
+        slug: "category-1",
+        permission: 1,
+        topic_template: "",
+      },
+      {
+        id: 4,
+        name: "Category 2",
+        slug: "category-2",
+        permission: 1,
+        topic_template: "",
+      },
+    ],
+  });
+
+  test("does not display category with create_topic_wizard custom field", async function (assert) {
+    const categoryChooser = selectKit(".category-chooser");
+
+    await visit("/");
+    await click("#create-topic");
+    await categoryChooser.expand();
+    let categories = Array.from(
+      document.querySelectorAll(".category-chooser .category-row")
+    ).filter((category) => category.getAttribute("data-name")); // Filter elements with a data-name attribute
+    assert.equal(
+      categories.length,
+      3,
+      "Correct number of categories are displayed"
+    );
+    const categoryNames = ["General", "Category 1", "Category 2"];
+
+    categoryNames.forEach((categoryName) => {
+      assert.ok(
+        categories.some(
+          (category) => category.getAttribute("data-name") === categoryName
+        ),
+        `Category '${categoryName}' is displayed`
+      );
+    });
+
+    const categoryNameWithCustomField = "Category with custom field";
+    assert.notOk(
+      categories.some(
+        (category) =>
+          category.getAttribute("data-name") === categoryNameWithCustomField
+      ),
+      `Category '${categoryNameWithCustomField}' is not displayed`
+    );
+  });
+});