diff --git a/C4/Search.pm b/C4/Search.pm
index 72c81ec06c..e26d0a6f87 100644
--- a/C4/Search.pm
+++ b/C4/Search.pm
@@ -996,6 +996,8 @@ sub getIndexes{
                     'Conference-name-seealso',
                     'Content-type',
                     'Control-number',
+                    'Control-number-identifier',
+                    'cni',
                     'copydate',
                     'Corporate-name',
                     'Corporate-name-heading',
diff --git a/Koha/SearchEngine/Elasticsearch/QueryBuilder.pm b/Koha/SearchEngine/Elasticsearch/QueryBuilder.pm
index 2a0775d386..ab292b1379 100644
--- a/Koha/SearchEngine/Elasticsearch/QueryBuilder.pm
+++ b/Koha/SearchEngine/Elasticsearch/QueryBuilder.pm
@@ -81,6 +81,7 @@ our %index_field_convert = (
     'nt' => 'note',
     'notes' => 'note',
     'rcn' => 'record-control-number',
+    'cni' => 'control-number-identifier',
     'su' => 'subject',
     'su-to' => 'subject',
     #'su-geo' => 'subject',
diff --git a/admin/searchengine/elasticsearch/mappings.yaml b/admin/searchengine/elasticsearch/mappings.yaml
index 4f19b9cd62..8a42be29d9 100644
--- a/admin/searchengine/elasticsearch/mappings.yaml
+++ b/admin/searchengine/elasticsearch/mappings.yaml
@@ -3299,6 +3299,15 @@ biblios:
         sort: ~
         suggestible: ''
     type: ''
+  control-number-identifier:
+    label: control-number-identifier
+    mappings:
+      - facet: ''
+        marc_field: 003
+        marc_type: marc21
+        sort: ~
+        suggestible: ''
+    type: ''
   record-source:
     label: record-source
     mappings:
diff --git a/etc/zebradb/biblios/etc/bib1.att b/etc/zebradb/biblios/etc/bib1.att
index d14d617f93..57df88386b 100644
--- a/etc/zebradb/biblios/etc/bib1.att
+++ b/etc/zebradb/biblios/etc/bib1.att
@@ -221,6 +221,7 @@ att 9010    cn-suffix
 att 9011    Suppress
 att 9012    Identifier-other
 att 9013    not-onloan-count
+att 9014    Control-number-identifier
 
 # Items Index
 att 8001    withdrawn
diff --git a/etc/zebradb/ccl.properties b/etc/zebradb/ccl.properties
index 5c003d301d..53f042c184 100644
--- a/etc/zebradb/ccl.properties
+++ b/etc/zebradb/ccl.properties
@@ -996,6 +996,9 @@ llength 1=llength
 Summary 1=Summary
 not-onloan-count 1=9013 4=109
 
+Control-number-identifier 1=9014
+cni Control-number-identifier
+
 ###
 # Items Index
 withdrawn 1=8001
diff --git a/etc/zebradb/marc_defs/marc21/biblios/biblio-koha-indexdefs.xml b/etc/zebradb/marc_defs/marc21/biblios/biblio-koha-indexdefs.xml
index c8bd60eaa4..660e087973 100644
--- a/etc/zebradb/marc_defs/marc21/biblios/biblio-koha-indexdefs.xml
+++ b/etc/zebradb/marc_defs/marc21/biblios/biblio-koha-indexdefs.xml
@@ -16,6 +16,9 @@
   <index_control_field tag="001">
     <target_index>Control-number:w</target_index>
   </index_control_field>
+  <index_control_field tag="003">
+    <target_index>Control-number-identifier:w</target_index>
+  </index_control_field>
   <!--record.abs line 44: melm 005        Date/time-last-modified-->
   <index_control_field tag="005">
     <target_index>Date/time-last-modified:w</target_index>
diff --git a/etc/zebradb/marc_defs/marc21/biblios/biblio-zebra-indexdefs.xsl b/etc/zebradb/marc_defs/marc21/biblios/biblio-zebra-indexdefs.xsl
index 72bc7f0b09..ec11e961a0 100644
--- a/etc/zebradb/marc_defs/marc21/biblios/biblio-zebra-indexdefs.xsl
+++ b/etc/zebradb/marc_defs/marc21/biblios/biblio-zebra-indexdefs.xsl
@@ -62,6 +62,11 @@ definition file (probably something like {biblio,authority}-koha-indexdefs.xml)
       <xslo:value-of select="."/>
     </z:index>
   </xslo:template>
+  <xslo:template match="marc:controlfield[@tag='003']">
+    <z:index name="Control-number-identifier:w">
+      <xslo:value-of select="."/>
+    </z:index>
+  </xslo:template>
   <xslo:template match="marc:controlfield[@tag='005']">
     <z:index name="Date/time-last-modified:w">
       <xslo:value-of select="."/>