diff --git a/aspnetcore/src/ApiModels/Publication/Publication.cs b/aspnetcore/src/ApiModels/Publication/Publication.cs
index 11b0e13..2410dd7 100644
--- a/aspnetcore/src/ApiModels/Publication/Publication.cs
+++ b/aspnetcore/src/ApiModels/Publication/Publication.cs
@@ -13,6 +13,11 @@ public class Publication
     /// Publication ID
     /// </summary>
     public string? Id { get; set; }
+
+    /// <summary>
+    /// Julkaisun organisaatiotunnus
+    /// </summary>
+    public string? OriginalPublicationId { get; set; }
     
     /// <summary>
     /// Name of the publication
diff --git a/aspnetcore/src/ApiModels/Query/GetPublicationsQueryParameters.cs b/aspnetcore/src/ApiModels/Query/GetPublicationsQueryParameters.cs
index 0be3eed..2bd7eb9 100644
--- a/aspnetcore/src/ApiModels/Query/GetPublicationsQueryParameters.cs
+++ b/aspnetcore/src/ApiModels/Query/GetPublicationsQueryParameters.cs
@@ -14,6 +14,12 @@ public class GetPublicationsQueryParameters : PaginationQueryParameters
     /// <see cref="Publication.Name"/>
     public string? Name { get; set; }
 
+    /// <summary>
+    /// The field originalPublicationId is exactly equal to the text.
+    /// </summary>
+    /// <see cref="Publication.OriginalPublicationId"/>
+    public string? OriginalPublicationId { get; set; }
+
     /// <summary>
     /// The field publicationYear is exactly equal to the text.
     /// </summary>
diff --git a/aspnetcore/src/ElasticService/ElasticSearchQueryGenerators/PublicationQueryGenerator.cs b/aspnetcore/src/ElasticService/ElasticSearchQueryGenerators/PublicationQueryGenerator.cs
index dae433e..9336cf6 100644
--- a/aspnetcore/src/ElasticService/ElasticSearchQueryGenerators/PublicationQueryGenerator.cs
+++ b/aspnetcore/src/ElasticService/ElasticSearchQueryGenerators/PublicationQueryGenerator.cs
@@ -33,6 +33,13 @@ private static IEnumerable<Func<QueryContainerDescriptor<Publication>, QueryCont
                 t.Match(query => query.Field(f => f.Name)
                     .Query(parameters.Name)));
         }
+
+        if (!string.IsNullOrWhiteSpace(parameters.OriginalPublicationId))
+        {
+            subQueries.Add(t => 
+                t.Match(query => query.Field(f => f.OriginalPublicationId)
+                    .Query(parameters.OriginalPublicationId)));
+        }
         
         if (!string.IsNullOrWhiteSpace(parameters.AuthorsText))
         {
diff --git a/aspnetcore/src/ElasticService/SearchParameters/PublicationSearchParameters.cs b/aspnetcore/src/ElasticService/SearchParameters/PublicationSearchParameters.cs
index f790625..389d4a0 100644
--- a/aspnetcore/src/ElasticService/SearchParameters/PublicationSearchParameters.cs
+++ b/aspnetcore/src/ElasticService/SearchParameters/PublicationSearchParameters.cs
@@ -2,6 +2,8 @@
 
 public class PublicationSearchParameters
 {
+    public string? OriginalPublicationId { get; set; }
+    
     public string? Name { get; set; }
 
     public string? PublicationYear { get; set; }
diff --git a/aspnetcore/src/Repositories/Maps/PublicationProfile.cs b/aspnetcore/src/Repositories/Maps/PublicationProfile.cs
index f98c283..e180455 100644
--- a/aspnetcore/src/Repositories/Maps/PublicationProfile.cs
+++ b/aspnetcore/src/Repositories/Maps/PublicationProfile.cs
@@ -21,6 +21,7 @@ public PublicationProfile()
         CreateProjection<DimPublication, Publication>()
             .AddTransform<string?>(s => string.IsNullOrWhiteSpace(s) ? null : s)
             .ForMember(dst => dst.Id, opt => opt.MapFrom(src => src.PublicationId))
+            .ForMember(dst => dst.OriginalPublicationId, opt => opt.MapFrom(src => src.OriginalPublicationId))
             .ForMember(dst => dst.Name, opt => opt.MapFrom(src => src.PublicationName))
             .ForMember(dst => dst.PublicationYear, opt => opt.MapFrom(src => (DateTime?)(src.PublicationYear.HasValue ? new DateTime(src.PublicationYear.Value,1,1,0,0,0,DateTimeKind.Utc) : null)))
             .ForMember(dst => dst.ReportingYear, opt =>opt.MapFrom(src => (DateTime?)(src.ReportingYear.HasValue ? new DateTime(src.ReportingYear.Value,1,1,0,0,0,DateTimeKind.Utc) : null)))
diff --git a/aspnetcore/src/Service.Models/Publication/Publication.cs b/aspnetcore/src/Service.Models/Publication/Publication.cs
index 31a86a3..9a46d88 100644
--- a/aspnetcore/src/Service.Models/Publication/Publication.cs
+++ b/aspnetcore/src/Service.Models/Publication/Publication.cs
@@ -13,6 +13,12 @@ public class Publication
     [Keyword]
     public string? Id { get; set; }
 
+    /// <summary>
+    /// Julkaisun organisaatiotunnus
+    /// </summary>
+    [Keyword]
+    public string? OriginalPublicationId { get; set; }
+
     /// <summary>
     /// Julkaisun nimi
     /// </summary>
diff --git a/aspnetcore/test/Indexer.Tests/Maps/PublicationProfileTest.cs b/aspnetcore/test/Indexer.Tests/Maps/PublicationProfileTest.cs
index 12cc341..7350ea9 100644
--- a/aspnetcore/test/Indexer.Tests/Maps/PublicationProfileTest.cs
+++ b/aspnetcore/test/Indexer.Tests/Maps/PublicationProfileTest.cs
@@ -57,6 +57,7 @@ private static DimPublication GetEntity()
         {
             Id = 1,
             PublicationId = "publicationId",
+            OriginalPublicationId = "abc123",
             PublicationName = "nameFi",
             PublicationYear = 2021,
             ReportingYear = 2022,
@@ -295,6 +296,7 @@ private Publication GetModel()
         return new Publication
         {
             Id = "publicationId",
+            OriginalPublicationId = "abc123",
             Name = "nameFi",
             PublicationYear = new DateTime(2021, 1, 1),
             ReportingYear = new DateTime(2022, 1, 1),