diff --git a/lib/internal/bootstrap/node.js b/lib/internal/bootstrap/node.js
index 4295ce79d88956..35b79bbc973c21 100644
--- a/lib/internal/bootstrap/node.js
+++ b/lib/internal/bootstrap/node.js
@@ -86,6 +86,31 @@ process.domain = null;
 }
 process._exiting = false;
 
+{
+  const warnIntegerCoercionDeprecation = deprecate(
+    () => {},
+    'Implicit coercion to interger for `exit code` is deprecated.',
+    'DEP0164'
+  );
+
+  let exitCode;
+
+  ObjectDefineProperty(process, 'exitCode', {
+    __proto__: null,
+    get() {
+      return exitCode;
+    },
+    set(code) {
+      if (perThreadSetup.isDeprecatedExitCode(code)) {
+        warnIntegerCoercionDeprecation();
+      }
+      exitCode = code;
+    },
+    enumerable: true,
+    configurable: false,
+  });
+}
+
 // process.config is serialized config.gypi
 const nativeModule = internalBinding('builtins');
 
diff --git a/lib/internal/process/per_thread.js b/lib/internal/process/per_thread.js
index 3299d959910247..91d44431cd5b55 100644
--- a/lib/internal/process/per_thread.js
+++ b/lib/internal/process/per_thread.js
@@ -185,7 +185,7 @@ function wrapProcessMethods(binding) {
   const { deprecate } = require('internal/util');
   const warnIntegerCoercionDeprecationSync = deprecate(
     () => {},
-    'Implicit coercion to interger for `code` is deprecated.',
+    'Implicit coercion to interger for `exit code` is deprecated.',
     'DEP0164',
     true
   );
@@ -448,4 +448,5 @@ module.exports = {
   hrtime,
   hrtimeBigInt,
   refreshHrtimeBuffer,
+  isDeprecatedExitCode,
 };
diff --git a/test/parallel/test-process-exit-code-deprecation.js b/test/parallel/test-process-exit-code-deprecation.js
index f9163039f1b02a..17da793dfc2276 100644
--- a/test/parallel/test-process-exit-code-deprecation.js
+++ b/test/parallel/test-process-exit-code-deprecation.js
@@ -82,8 +82,8 @@ if (process.argv[2] === undefined) {
   for (const index of args.keys()) {
     // Check `process.exit([code])`
     test(index);
-    // TODO: Check exit with `process.exitCode`
-    // test(index, true);
+    // Check exit with `process.exitCode`
+    test(index, true);
   }
 } else {
   const index = parseInt(process.argv[2]);