diff --git a/src/registry/inbuilt-components/inbuiltValidators.ts b/src/registry/inbuilt-components/inbuiltValidators.ts
index adf93b83..a2784dd6 100644
--- a/src/registry/inbuilt-components/inbuiltValidators.ts
+++ b/src/registry/inbuilt-components/inbuiltValidators.ts
@@ -1,3 +1,4 @@
+import { conditionalAnsweredValidator } from '../../validators/conditional-answered-validator';
 import { type FormFieldValidator } from '../../types';
 import { DateValidator } from '../../validators/date-validator';
 import { DefaultValueValidator } from '../../validators/default-value-validator';
@@ -25,4 +26,8 @@ export const inbuiltValidators: Array<RegistryItem<FormFieldValidator>> = [
     name: 'js_expression',
     component: ExpressionValidator,
   },
+  {
+    name: 'conditionalAnswered',
+    component: conditionalAnsweredValidator,
+  },
 ];
diff --git a/src/validators/conditional-answered-validator.ts b/src/validators/conditional-answered-validator.ts
new file mode 100644
index 00000000..911511e4
--- /dev/null
+++ b/src/validators/conditional-answered-validator.ts
@@ -0,0 +1,16 @@
+import { type FormFieldValidator, type FormField } from '../types';
+
+export const conditionalAnsweredValidator: FormFieldValidator = {
+  validate: function (field: FormField, value: unknown, config: Record<string, any>) {
+    const { referenceQuestionId, referenceQuestionAnswers, values, fields, message } = config;
+
+    const referencedField = fields.find((field) => field.id === referenceQuestionId);
+    const referencedFieldValue = referencedField.meta?.submission?.newValue?.value || values[referencedField.id];
+
+    if (!referencedFieldValue || !referenceQuestionAnswers.includes(referencedFieldValue)) {
+      return [{ resultType: 'error', errCode: 'invalid.valueSelected', message: message }];
+    }
+
+    return [];
+  },
+};