diff --git a/COMPONENT_INDEX.md b/COMPONENT_INDEX.md
index dd6e8c40..07454755 100644
--- a/COMPONENT_INDEX.md
+++ b/COMPONENT_INDEX.md
@@ -2289,6 +2289,8 @@ export type NumberInputTranslationId = "increment" | "decrement";
 | iconDescription | <code>let</code>   | No       | <code>string</code>                                             | <code>""</code>                                                  | Specify the ARIA label for the increment icons |
 | invalid         | <code>let</code>   | No       | <code>boolean</code>                                            | <code>false</code>                                               | Set to `true` to indicate an invalid state     |
 | invalidText     | <code>let</code>   | No       | <code>string</code>                                             | <code>""</code>                                                  | Specify the invalid state text                 |
+| warn            | <code>let</code>   | No       | <code>boolean</code>                                            | <code>false</code>                                               | Set to `true` to indicate an warning state     |
+| warnText        | <code>let</code>   | No       | <code>string</code>                                             | <code>""</code>                                                  | Specify the warning state text                 |
 | helperText      | <code>let</code>   | No       | <code>string</code>                                             | <code>""</code>                                                  | Specify the helper text                        |
 | label           | <code>let</code>   | No       | <code>string</code>                                             | <code>""</code>                                                  | Specify the label text                         |
 | hideLabel       | <code>let</code>   | No       | <code>boolean</code>                                            | <code>false</code>                                               | Set to `true` to visually hide the label text  |
diff --git a/docs/src/COMPONENT_API.json b/docs/src/COMPONENT_API.json
index bcf98cdd..000cd060 100644
--- a/docs/src/COMPONENT_API.json
+++ b/docs/src/COMPONENT_API.json
@@ -6105,6 +6105,26 @@
           "constant": false,
           "reactive": false
         },
+        {
+          "name": "warn",
+          "kind": "let",
+          "description": "Set to `true` to indicate an warning state",
+          "type": "boolean",
+          "value": "false",
+          "isFunction": false,
+          "constant": false,
+          "reactive": false
+        },
+        {
+          "name": "warnText",
+          "kind": "let",
+          "description": "Specify the warning state text",
+          "type": "string",
+          "value": "\"\"",
+          "isFunction": false,
+          "constant": false,
+          "reactive": false
+        },
         {
           "name": "helperText",
           "kind": "let",
diff --git a/docs/src/pages/components/NumberInput.svx b/docs/src/pages/components/NumberInput.svx
index c2ceff28..54ffc7c0 100644
--- a/docs/src/pages/components/NumberInput.svx
+++ b/docs/src/pages/components/NumberInput.svx
@@ -41,7 +41,11 @@ components: ["NumberInput", "NumberInputSkeleton"]
 
 ### Invalid state
 
-<NumberInput invalid invalidText="An error occurred" label="Clusters" />
+<NumberInput invalid invalidText="Invalid value" label="Clusters" />
+
+### Warning state
+
+<NumberInput warn warnText="A high number may impact initial rollout" label="Clusters" value="25" />
 
 ### Disabled state
 
diff --git a/src/NumberInput/NumberInput.svelte b/src/NumberInput/NumberInput.svelte
index f8f33592..26068901 100644
--- a/src/NumberInput/NumberInput.svelte
+++ b/src/NumberInput/NumberInput.svelte
@@ -55,6 +55,12 @@
   /** Specify the invalid state text */
   export let invalidText = "";
 
+  /** Set to `true` to indicate an warning state */
+  export let warn = false;
+
+  /** Specify the warning state text */
+  export let warnText = "";
+
   /** Specify the helper text */
   export let helperText = "";
 
@@ -95,6 +101,7 @@
   import CaretDownGlyph from "carbon-icons-svelte/lib/CaretDownGlyph/CaretDownGlyph.svelte";
   import CaretUpGlyph from "carbon-icons-svelte/lib/CaretUpGlyph/CaretUpGlyph.svelte";
   import WarningFilled16 from "carbon-icons-svelte/lib/WarningFilled16/WarningFilled16.svelte";
+  import WarningAltFilled16 from "carbon-icons-svelte/lib/WarningAltFilled16/WarningAltFilled16.svelte";
 
   const defaultTranslations = {
     [translationIds.increment]: "Increment number",
@@ -161,7 +168,10 @@
           <slot name="label">{label}</slot>
         </label>
       {/if}
-      <div class:bx--number__input-wrapper="{true}">
+      <div
+        class:bx--number__input-wrapper="{true}"
+        class:bx--number__input-wrapper--warning="{!invalid && warn}"
+      >
         <button
           type="button"
           aria-live="polite"
@@ -222,7 +232,10 @@
           <slot name="label">{label}</slot>
         </label>
       {/if}
-      <div class:bx--number__input-wrapper="{true}">
+      <div
+        class:bx--number__input-wrapper="{true}"
+        class:bx--number__input-wrapper--warning="{!invalid && warn}"
+      >
         <input
           bind:this="{ref}"
           type="number"
@@ -246,6 +259,11 @@
         {#if invalid}
           <WarningFilled16 class="bx--number__invalid" />
         {/if}
+        {#if !invalid && warn}
+          <WarningAltFilled16
+            class="bx--number__invalid bx--number__invalid--warning"
+          />
+        {/if}
         <div class:bx--number__controls="{true}">
           <button
             type="button"
@@ -280,7 +298,7 @@
         </div>
       </div>
     {/if}
-    {#if !error && helperText}
+    {#if !error && !warn && helperText}
       <div
         class:bx--form__helper-text="{true}"
         class:bx--form__helper-text--disabled="{disabled}"
@@ -293,5 +311,8 @@
         {invalidText}
       </div>
     {/if}
+    {#if !error && warn}
+      <div id="{errorId}" class:bx--form-requirement="{true}">{warnText}</div>
+    {/if}
   </div>
 </div>
diff --git a/types/NumberInput/NumberInput.d.ts b/types/NumberInput/NumberInput.d.ts
index 715560b9..fa040b1c 100644
--- a/types/NumberInput/NumberInput.d.ts
+++ b/types/NumberInput/NumberInput.d.ts
@@ -78,6 +78,18 @@ export interface NumberInputProps extends svelte.JSX.HTMLAttributes<HTMLElementT
    */
   invalidText?: string;
 
+  /**
+   * Set to `true` to indicate an warning state
+   * @default false
+   */
+  warn?: boolean;
+
+  /**
+   * Specify the warning state text
+   * @default ""
+   */
+  warnText?: string;
+
   /**
    * Specify the helper text
    * @default ""