diff --git a/docs/bootstrap-inventory.md b/docs/bootstrap-inventory.md
index 7b0c0129a0..8899b4990d 100644
--- a/docs/bootstrap-inventory.md
+++ b/docs/bootstrap-inventory.md
@@ -13975,40 +13975,40 @@ Rank live CFG gaps across inventory files: `php script/bootstrap-inventory-triag
 - new NumberFormatterGetErrorMessage (line 265)
 - new Error (line 283)
 - new ObjectEntry (line 285)
-- new ArgumentCountError (line 1857)
-- new Error (line 1865)
-- new ArgumentCountError (line 1889)
-- new ArgumentCountError (line 1919)
-- new Error (line 1927)
-- new ArgumentCountError (line 1959)
-- new Error (line 1967)
-- new ArgumentCountError (line 1996)
-- new Error (line 2004)
-- new ArgumentCountError (line 2059)
-- new Error (line 2067)
-- new ArgumentCountError (line 2120)
-- new Error (line 2128)
-- new ArgumentCountError (line 2160)
-- new Error (line 2168)
-- new ArgumentCountError (line 2192)
-- new Error (line 2200)
-- new ArgumentCountError (line 2228)
-- new Error (line 2236)
-- new ArgumentCountError (line 2260)
-- new Error (line 2268)
-- new ArgumentCountError (line 2296)
-- new Error (line 2304)
-- new ArgumentCountError (line 2328)
-- new Error (line 2336)
-- new ArgumentCountError (line 2363)
-- new Error (line 2371)
-- new ArgumentCountError (line 2394)
-- new Error (line 2402)
-- new ArgumentCountError (line 2429)
-- new Error (line 2437)
-- new ArgumentCountError (line 2458)
-- new Error (line 2466)
-- 71 class method(s)
+- new ArgumentCountError (line 1868)
+- new Error (line 1876)
+- new ArgumentCountError (line 1900)
+- new ArgumentCountError (line 1930)
+- new Error (line 1938)
+- new ArgumentCountError (line 1970)
+- new Error (line 1978)
+- new ArgumentCountError (line 2007)
+- new Error (line 2015)
+- new ArgumentCountError (line 2070)
+- new Error (line 2078)
+- new ArgumentCountError (line 2131)
+- new Error (line 2139)
+- new ArgumentCountError (line 2171)
+- new Error (line 2179)
+- new ArgumentCountError (line 2203)
+- new Error (line 2211)
+- new ArgumentCountError (line 2239)
+- new Error (line 2247)
+- new ArgumentCountError (line 2271)
+- new Error (line 2279)
+- new ArgumentCountError (line 2307)
+- new Error (line 2315)
+- new ArgumentCountError (line 2339)
+- new Error (line 2347)
+- new ArgumentCountError (line 2374)
+- new Error (line 2382)
+- new ArgumentCountError (line 2405)
+- new Error (line 2413)
+- new ArgumentCountError (line 2440)
+- new Error (line 2448)
+- new ArgumentCountError (line 2469)
+- new Error (line 2477)
+- 72 class method(s)
 
 ### `ext/intl/VmResourceBundle.php`
 
diff --git a/ext/intl/VmNumberFormatter.php b/ext/intl/VmNumberFormatter.php
index b403642976..6a8c993e9d 100644
--- a/ext/intl/VmNumberFormatter.php
+++ b/ext/intl/VmNumberFormatter.php
@@ -531,14 +531,14 @@ public static function parse(
                 $start = 0;
             }
             if ($start > \strlen($value)) {
-                self::fail($formatter, 'numfmt_parse: Number parsing failed: U_PARSE_ERROR');
+                self::failParse($formatter);
 
                 return false;
             }
             $slice = \substr($value, $start);
             $prefix = self::matchNumberPrefix($slice, $state['locale']);
             if (null === $prefix) {
-                self::fail($formatter, 'numfmt_parse: Number parsing failed: U_PARSE_ERROR');
+                self::failParse($formatter);
 
                 return false;
             }
@@ -551,7 +551,7 @@ public static function parse(
                 // Fallback: historic full-string sanitize for whitespace / odd separators.
                 $num = self::parseNumberString($value, $state['locale']);
                 if (null === $num) {
-                    self::fail($formatter, 'numfmt_parse: Number parsing failed: U_PARSE_ERROR');
+                    self::failParse($formatter);
 
                     return false;
                 }
@@ -599,7 +599,7 @@ public static function parseCurrency(
                 $start = 0;
             }
             if ($start > \strlen($value)) {
-                self::fail($formatter, 'numfmt_parse_currency: Currency parsing failed: U_PARSE_ERROR');
+                self::failParse($formatter);
                 $currencyOut = null;
 
                 return false;
@@ -608,7 +608,7 @@ public static function parseCurrency(
         $slice = $hasOffset ? \substr($value, $start) : $value;
         $parsed = self::parseCurrencySlice($slice, $state['locale']);
         if (null === $parsed) {
-            self::fail($formatter, 'numfmt_parse_currency: Currency parsing failed: U_PARSE_ERROR');
+            self::failParse($formatter);
             $currencyOut = null;
 
             return false;
@@ -1036,11 +1036,22 @@ public static function coerceStringArg(Variable $var, string $function, int $pos
         return VmString::coerceStringBuiltinArg($var, $function, $position, $name);
     }
 
-    private static function fail(ObjectEntry $formatter, string $message): void
+    private static function fail(ObjectEntry $formatter, string $message, int $code = IntlError::U_ILLEGAL_ARGUMENT_ERROR): void
     {
-        IntlError::set(IntlError::U_ILLEGAL_ARGUMENT_ERROR, $message);
+        IntlError::set($code, $message);
         if (isset(self::$state[$formatter->id])) {
-            self::$state[$formatter->id]['errorCode'] = IntlError::U_ILLEGAL_ARGUMENT_ERROR;
+            self::$state[$formatter->id]['errorCode'] = $code;
+            self::$state[$formatter->id]['errorMessage'] = $message;
+        }
+    }
+
+    /**
+     * Parse/parseCurrency failure — object error only (php-src leaves intl_get_error_code at 0) (#22855).
+     */
+    private static function failParse(ObjectEntry $formatter, string $message = 'Number parsing failed: U_PARSE_ERROR'): void
+    {
+        if (isset(self::$state[$formatter->id])) {
+            self::$state[$formatter->id]['errorCode'] = IntlError::U_PARSE_ERROR;
             self::$state[$formatter->id]['errorMessage'] = $message;
         }
     }
diff --git a/test/compliance/cases/intl/numberformatter_parse_error_code.phpt b/test/compliance/cases/intl/numberformatter_parse_error_code.phpt
new file mode 100644
index 0000000000..34cf54e053
--- /dev/null
+++ b/test/compliance/cases/intl/numberformatter_parse_error_code.phpt
@@ -0,0 +1,26 @@
+--TEST--
+NumberFormatter::parse error is U_PARSE_ERROR (9); global intl error stays 0 (#22855)
+--SKIPIF--
+<?php
+if (!\PHPCompiler\ext\intl\IntlExtensionPolicy::runsIntlOopCompliance(basename(__FILE__))) {
+    echo 'skip NumberFormatter withheld until extension_loaded(\'intl\') (#19670)';
+}
+?>
+--FILE--
+<?php
+$f = new NumberFormatter('en_US', NumberFormatter::DECIMAL);
+$r = $f->parse('not-a-number');
+echo 'r=', var_export($r, true), "\n";
+echo 'code=', $f->getErrorCode(), "\n";
+echo 'msg=', $f->getErrorMessage(), "\n";
+echo 'gcode=', intl_get_error_code(), "\n";
+echo 'ok=', $f->parse('1,234.5'), "\n";
+echo 'ok_code=', $f->getErrorCode(), "\n";
+?>
+--EXPECT--
+r=false
+code=9
+msg=Number parsing failed: U_PARSE_ERROR
+gcode=0
+ok=1234.5
+ok_code=0
diff --git a/test/repro/issue_22855_numfmt_parse_error.php b/test/repro/issue_22855_numfmt_parse_error.php
new file mode 100644
index 0000000000..439f5ae81b
--- /dev/null
+++ b/test/repro/issue_22855_numfmt_parse_error.php
@@ -0,0 +1,11 @@
+<?php
+/**
+ * Repro #22855 — NumberFormatter::parse failure → U_PARSE_ERROR (9), global intl error stays 0.
+ */
+$f = new NumberFormatter('en_US', NumberFormatter::DECIMAL);
+$r = $f->parse('not-a-number');
+var_export($r);
+echo "\n";
+echo $f->getErrorCode(), "\n";
+echo $f->getErrorMessage(), "\n";
+echo intl_get_error_code(), "\n";