diff --git a/CHANGELOG.md b/CHANGELOG.md
index 5d211b3c6f8..dcfc7e59ea5 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,8 @@
 ## [`master`](https://github.com/elastic/eui/tree/master)
 
-No public interface changes since `22.1.0`.
+**Bug Fixes**
+
+- Fixed EuiBasicTable proptypes of itemId ([#3133](https://github.com/elastic/eui/pull/3133))
 
 ## [`22.1.0`](https://github.com/elastic/eui/tree/v22.1.0)
 
diff --git a/src-docs/src/views/tables/basic/props_info.js b/src-docs/src/views/tables/basic/props_info.js
index 6f88d07d9eb..a7315397d9b 100644
--- a/src-docs/src/views/tables/basic/props_info.js
+++ b/src-docs/src/views/tables/basic/props_info.js
@@ -12,7 +12,7 @@ export const propsInfo = {
           description:
             'Describes how to extract a unique ID from each item, used for selections & expanded rows',
           required: false,
-          type: { name: 'string | (item) => string' },
+          type: { name: 'string | number | (item) => string' },
         },
         itemIdToExpandedRowMap: {
           description:
diff --git a/src/components/basic_table/basic_table.tsx b/src/components/basic_table/basic_table.tsx
index a7c63d33fab..71d8ee7e7ac 100644
--- a/src/components/basic_table/basic_table.tsx
+++ b/src/components/basic_table/basic_table.tsx
@@ -53,6 +53,7 @@ import {
   ItemId,
   EuiTableSelectionType,
   EuiTableSortingType,
+  ItemIdResolved,
 } from './table_types';
 import { EuiTableSortMobileProps } from '../table/mobile/table_sort_mobile';
 
@@ -863,7 +864,7 @@ export class EuiBasicTable<T = any> extends Component<
     const cells = [];
 
     const { itemId: itemIdCallback } = this.props;
-    const itemId = getItemId(item, itemIdCallback) || rowIndex;
+    const itemId: ItemIdResolved = getItemId(item, itemIdCallback) || rowIndex;
     const selected = !selection
       ? false
       : this.state.selection &&
@@ -1021,7 +1022,7 @@ export class EuiBasicTable<T = any> extends Component<
   }
 
   renderItemActionsCell(
-    itemId: ItemId<T>,
+    itemId: ItemIdResolved,
     item: T,
     column: EuiTableActionsColumnType<T>,
     columnIndex: number
diff --git a/src/components/basic_table/collapsed_item_actions.tsx b/src/components/basic_table/collapsed_item_actions.tsx
index 7586465172c..70142c69070 100644
--- a/src/components/basic_table/collapsed_item_actions.tsx
+++ b/src/components/basic_table/collapsed_item_actions.tsx
@@ -10,12 +10,12 @@ import {
   DefaultItemIconButtonAction,
 } from './action_types';
 import { EuiIconType } from '../icon/icon';
-import { ItemId } from './table_types';
+import { ItemIdResolved } from './table_types';
 
 export interface CollapsedItemActionsProps<T> {
   actions: Array<Action<T>>;
   item: T;
-  itemId: ItemId<T>;
+  itemId: ItemIdResolved;
   actionEnabled: (action: Action<T>) => boolean;
   className?: string;
   onFocus?: (event: FocusEvent) => void;
diff --git a/src/components/basic_table/expanded_item_actions.tsx b/src/components/basic_table/expanded_item_actions.tsx
index d15b1b73698..a19be31f821 100644
--- a/src/components/basic_table/expanded_item_actions.tsx
+++ b/src/components/basic_table/expanded_item_actions.tsx
@@ -7,11 +7,11 @@ import {
   CustomItemAction as CustomAction,
   DefaultItemAction as DefaultAction,
 } from './action_types';
-import { ItemId } from './table_types';
+import { ItemIdResolved } from './table_types';
 
 export interface ExpandedItemActionsProps<T> {
   actions: Array<Action<T>>;
-  itemId: ItemId<T>;
+  itemId: ItemIdResolved;
   item: T;
   actionEnabled: (action: Action<T>) => boolean;
   className?: string;
diff --git a/src/components/basic_table/table_types.ts b/src/components/basic_table/table_types.ts
index 1a79f8257a5..8cfe8b4f206 100644
--- a/src/components/basic_table/table_types.ts
+++ b/src/components/basic_table/table_types.ts
@@ -5,7 +5,9 @@ import { Action } from './action_types';
 import { Primitive } from '../../services/sort/comparators';
 import { CommonProps } from '../common';
 
-export type ItemId<T> = string | ((item: T) => string);
+export type ItemId<T> = string | number | ((item: T) => string);
+export type ItemIdResolved = string | number;
+
 export type EuiTableDataType =
   | 'auto'
   | 'string'