diff --git a/src/graphql/biospecimen/types/biospecimen.ts b/src/graphql/biospecimen/types/biospecimen.ts
index 959569b..b90a79c 100644
--- a/src/graphql/biospecimen/types/biospecimen.ts
+++ b/src/graphql/biospecimen/types/biospecimen.ts
@@ -37,7 +37,17 @@ export const BiospecimenType = new GraphQLObjectType({
     study: { type: StudyType },
   }),
   extensions: {
-    nestedFields: ['files'],
+    nestedFields: [
+      'files',
+      'participant.diagnoses',
+      'participant.family_relationships',
+      'participant.icd_tagged',
+      'participant.mondo',
+      'participant.mondo_tagged',
+      'participant.observed_phenotype_tagged',
+      'participant.observed_phenotypes',
+      'participant.phenotypes_tagged',
+    ],
     esIndex: esBiospecimenIndex,
   },
 });
diff --git a/src/graphql/participant/types/participant.ts b/src/graphql/participant/types/participant.ts
index 90bcb27..f936387 100644
--- a/src/graphql/participant/types/participant.ts
+++ b/src/graphql/participant/types/participant.ts
@@ -67,6 +67,7 @@ export const ParticipantType = new GraphQLObjectType({
   extensions: {
     nestedFields: [
       'files',
+      'files.biospecimens',
       'biospecimens',
       'family_relationships',
       'icd_tagged',
diff --git a/src/graphql/study/types/study.ts b/src/graphql/study/types/study.ts
index fda1a34..8c7e4d9 100644
--- a/src/graphql/study/types/study.ts
+++ b/src/graphql/study/types/study.ts
@@ -66,7 +66,7 @@ export const StudyType = new GraphQLObjectType({
     experimental_strategies: { type: ExperimentalStrategiesType },
   }),
   extensions: {
-    nestedFields: [],
+    nestedFields: ['data_categories', 'data_types', 'datasets', 'experimental_strategies'],
     esIndex: esStudyIndex,
   },
 });