diff --git a/app/controllers/v0/benefits_claims_controller.rb b/app/controllers/v0/benefits_claims_controller.rb
index 10fbbed3f69..7622dfe4af9 100644
--- a/app/controllers/v0/benefits_claims_controller.rb
+++ b/app/controllers/v0/benefits_claims_controller.rb
@@ -51,7 +51,13 @@ def submit5103
       # for file number here
       ::Rails.logger.info('[5103 Submission] No file number') if @current_user.birls_id.nil?
 
-      res = service.submit5103(params[:id])
+      json_payload = request.body.read
+
+      data = JSON.parse(json_payload)
+
+      tracked_item_id = data['trackedItemId'] || nil
+
+      res = service.submit5103(params[:id], tracked_item_id)
 
       render json: res
     end
diff --git a/lib/lighthouse/benefits_claims/service.rb b/lib/lighthouse/benefits_claims/service.rb
index 7ff2334563a..b09625329eb 100644
--- a/lib/lighthouse/benefits_claims/service.rb
+++ b/lib/lighthouse/benefits_claims/service.rb
@@ -22,8 +22,6 @@ def initialize(icn)
     end
 
     def get_claims(lighthouse_client_id = nil, lighthouse_rsa_key_path = nil, options = {})
-      Rails.logger.info("Get claims - icn: #{@icn.present?}, client_id: #{lighthouse_client_id.present?},
-                        lighthouse_rsa: #{lighthouse_rsa_key_path.present?}")
       claims = config.get("#{@icn}/claims", lighthouse_client_id, lighthouse_rsa_key_path, options).body
       claims['data'] = filter_by_status(claims['data'])
       claims
@@ -34,9 +32,6 @@ def get_claims(lighthouse_client_id = nil, lighthouse_rsa_key_path = nil, option
     end
 
     def get_claim(id, lighthouse_client_id = nil, lighthouse_rsa_key_path = nil, options = {})
-      Rails.logger.info("Get claim - icn: #{@icn.present?}, get_claim: #{id.present?},
-                        client_id: #{lighthouse_client_id.present?},
-                        lighthouse_rsa: #{lighthouse_rsa_key_path.present?}")
       config.get("#{@icn}/claims/#{id}", lighthouse_client_id, lighthouse_rsa_key_path, options).body
     rescue Faraday::TimeoutError
       raise BenefitsClaims::ServiceException.new({ status: 504 }), 'Lighthouse Error'
@@ -52,8 +47,17 @@ def get_power_of_attorney(lighthouse_client_id = nil, lighthouse_rsa_key_path =
       raise BenefitsClaims::ServiceException.new(e.response), 'Lighthouse Error'
     end
 
-    def submit5103(id, options = {})
-      config.post("#{@icn}/claims/#{id}/5103", {}, nil, nil, options).body
+    def submit5103(id, tracked_item_id, options = {})
+      config.post("#{@icn}/claims/#{id}/5103", {
+                    data: {
+                      type: 'form/5103',
+                      attributes: {
+                        trackedItemIds: [
+                          tracked_item_id
+                        ]
+                      }
+                    }
+                  }, nil, nil, options).body
     rescue Faraday::TimeoutError
       raise BenefitsClaims::ServiceException.new({ status: 504 }), 'Lighthouse Error'
     rescue Faraday::ClientError, Faraday::ServerError => e
diff --git a/spec/controllers/v0/benefits_claims_controller_spec.rb b/spec/controllers/v0/benefits_claims_controller_spec.rb
index 42276a69720..59a0eb2de18 100644
--- a/spec/controllers/v0/benefits_claims_controller_spec.rb
+++ b/spec/controllers/v0/benefits_claims_controller_spec.rb
@@ -218,7 +218,7 @@
   describe '#submit5103' do
     it 'returns a status of 200' do
       VCR.use_cassette('lighthouse/benefits_claims/submit5103/200_response') do
-        post(:submit5103, params: { id: '600397108' })
+        post(:submit5103, params: { id: '600397108', trackedItemId: 12_345 }, as: :json)
       end
 
       expect(response).to have_http_status(:ok)
@@ -226,7 +226,7 @@
 
     it 'returns a status of 404' do
       VCR.use_cassette('lighthouse/benefits_claims/submit5103/404_response') do
-        post(:submit5103, params: { id: '600397108' })
+        post(:submit5103, params: { id: '600397108', trackedItemId: 12_345 }, as: :json)
       end
 
       expect(response).to have_http_status(:not_found)
@@ -235,7 +235,7 @@
     context 'when LH takes too long to respond' do
       it 'returns a status of 504' do
         allow_any_instance_of(BenefitsClaims::Configuration).to receive(:post).and_raise(Faraday::TimeoutError)
-        post(:submit5103, params: { id: '60038334' })
+        post(:submit5103, params: { id: '600397108', trackedItemId: 12_345 }, as: :json)
 
         expect(response).to have_http_status(:gateway_timeout)
       end
diff --git a/spec/support/vcr_cassettes/lighthouse/benefits_claims/submit5103/200_response.yml b/spec/support/vcr_cassettes/lighthouse/benefits_claims/submit5103/200_response.yml
index c9b2b369b44..849745ccb42 100644
--- a/spec/support/vcr_cassettes/lighthouse/benefits_claims/submit5103/200_response.yml
+++ b/spec/support/vcr_cassettes/lighthouse/benefits_claims/submit5103/200_response.yml
@@ -5,7 +5,14 @@ http_interactions:
     uri: https://sandbox-api.va.gov/services/claims/v2/veterans/123498767V234859/claims/600397108/5103
     body:
       encoding: UTF-8
-      string: "{}"
+      string: "{
+        \"data\": {
+          \"type\": 'form/5103',
+          \"attributes\": {
+            \"trackedItemIds\": [12345]
+          }
+        }
+      }"
     headers:
       Accept:
       - application/json
diff --git a/spec/support/vcr_cassettes/lighthouse/benefits_claims/submit5103/404_response.yml b/spec/support/vcr_cassettes/lighthouse/benefits_claims/submit5103/404_response.yml
index 05ebe3abc66..7026207b159 100644
--- a/spec/support/vcr_cassettes/lighthouse/benefits_claims/submit5103/404_response.yml
+++ b/spec/support/vcr_cassettes/lighthouse/benefits_claims/submit5103/404_response.yml
@@ -5,7 +5,14 @@ http_interactions:
     uri: https://sandbox-api.va.gov/services/claims/v2/veterans/123498767V234859/claims/600397108/5103
     body:
       encoding: UTF-8
-      string: "{}"
+      string: "{
+        \"data\": {
+          \"type\": 'form/5103',
+          \"attributes\": {
+            \"trackedItemIds\": [12345]
+          }
+        }
+      }"
     headers:
       Accept:
       - application/json