diff --git a/icu4c/source/common/unicode/normlzr.h b/icu4c/source/common/unicode/normlzr.h
index bb6f852f36..7be0a7d392 100644
--- a/icu4c/source/common/unicode/normlzr.h
+++ b/icu4c/source/common/unicode/normlzr.h
@@ -750,7 +750,9 @@ private:
 
   FilteredNormalizer2*fFilteredNorm2;  // owned if not NULL
   const Normalizer2  *fNorm2;  // not owned; may be equal to fFilteredNorm2
+#ifndef U_HIDE_DEPRECATED_API
   UNormalizationMode  fUMode;
+#endif  /* U_HIDE_DEPRECATED_API */
   int32_t             fOptions;
 
   // The input text and our position in it
diff --git a/icu4c/source/common/unicode/unorm.h b/icu4c/source/common/unicode/unorm.h
index b9388e5967..4852538b3a 100644
--- a/icu4c/source/common/unicode/unorm.h
+++ b/icu4c/source/common/unicode/unorm.h
@@ -129,6 +129,7 @@
  * For more usage examples, see the Unicode Standard Annex.
  */
 
+#ifndef U_HIDE_DEPRECATED_API
 /**
  * Constants for normalization modes.
  * @deprecated ICU 56 Use unorm2.h instead.
@@ -152,6 +153,7 @@ typedef enum {
   /** One more than the highest normalization mode constant. @deprecated ICU 56 Use unorm2.h instead. */
   UNORM_MODE_COUNT
 } UNormalizationMode;
+#endif  /* U_HIDE_DEPRECATED_API */
 
 /**
  * Constants for options flags for normalization.