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diff --git a/intl/icu/source/i18n/numparse_currency.h b/intl/icu/source/i18n/numparse_currency.h
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+++ b/intl/icu/source/i18n/numparse_currency.h
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+// © 2018 and later: Unicode, Inc. and others.
+// License & terms of use: http://www.unicode.org/copyright.html
+
+#include "unicode/utypes.h"
+
+#if !UCONFIG_NO_FORMATTING
+#ifndef __NUMPARSE_CURRENCY_H__
+#define __NUMPARSE_CURRENCY_H__
+
+#include "numparse_types.h"
+#include "numparse_compositions.h"
+#include "charstr.h"
+#include "number_currencysymbols.h"
+#include "unicode/uniset.h"
+
+U_NAMESPACE_BEGIN namespace numparse {
+namespace impl {
+
+using ::icu::number::impl::CurrencySymbols;
+
+/**
+ * Matches a currency, either a custom currency or one from the data bundle. The class is called
+ * "combined" to emphasize that the currency string may come from one of multiple sources.
+ *
+ * Will match currency spacing either before or after the number depending on whether we are currently in
+ * the prefix or suffix.
+ *
+ * The implementation of this class is slightly different between J and C. See #13584 for a follow-up.
+ *
+ * @author sffc
+ */
+// Exported as U_I18N_API for tests
+class U_I18N_API CombinedCurrencyMatcher : public NumberParseMatcher, public UMemory {
+  public:
+    CombinedCurrencyMatcher() = default;  // WARNING: Leaves the object in an unusable state
+
+    CombinedCurrencyMatcher(const CurrencySymbols& currencySymbols, const DecimalFormatSymbols& dfs,
+                            parse_flags_t parseFlags, UErrorCode& status);
+
+    bool match(StringSegment& segment, ParsedNumber& result, UErrorCode& status) const override;
+
+    bool smokeTest(const StringSegment& segment) const override;
+
+    UnicodeString toString() const override;
+
+  private:
+    UChar fCurrencyCode[4];
+    UnicodeString fCurrency1;
+    UnicodeString fCurrency2;
+
+    bool fUseFullCurrencyData;
+    UnicodeString fLocalLongNames[StandardPlural::COUNT];
+
+    UnicodeString afterPrefixInsert;
+    UnicodeString beforeSuffixInsert;
+
+    // We could use Locale instead of CharString here, but
+    // Locale has a non-trivial default constructor.
+    CharString fLocaleName;
+
+    // TODO: See comments in constructor in numparse_currency.cpp
+    // UnicodeSet fLeadCodePoints;
+
+    /** Matches the currency string without concern for currency spacing. */
+    bool matchCurrency(StringSegment& segment, ParsedNumber& result, UErrorCode& status) const;
+};
+
+
+} // namespace impl
+} // namespace numparse
+U_NAMESPACE_END
+
+#endif //__NUMPARSE_CURRENCY_H__
+#endif /* #if !UCONFIG_NO_FORMATTING */