diff --git a/app/services/doc_auth/lexis_nexis/doc_pii_reader.rb b/app/services/doc_auth/lexis_nexis/doc_pii_reader.rb
index 79a46b11d64..f9360503542 100644
--- a/app/services/doc_auth/lexis_nexis/doc_pii_reader.rb
+++ b/app/services/doc_auth/lexis_nexis/doc_pii_reader.rb
@@ -22,6 +22,7 @@ module DocPiiReader
       # @return [Pii::StateId, nil]
       def read_pii(true_id_product)
         id_auth_field_data = true_id_product&.dig(:IDAUTH_FIELD_DATA)
+        authentication_result_field_data = true_id_product&.dig(:AUTHENTICATION_RESULT)
         return nil unless id_auth_field_data.present?
 
         state_id_type_slug = id_auth_field_data['Fields_DocumentClassName']
@@ -42,7 +43,7 @@ def read_pii(true_id_product)
             month: id_auth_field_data['Fields_DOB_Month'],
             day: id_auth_field_data['Fields_DOB_Day'],
           ),
-          sex: parse_sex_value(id_auth_field_data['Fields_Sex']),
+          sex: parse_sex_value(authentication_result_field_data&.[]('Sex')),
           height: parse_height_value(id_auth_field_data['Fields_Height']),
           weight: nil,
           eye_color: nil,
@@ -87,10 +88,10 @@ def parse_sex_value(sex_attribute)
         # This code will return `nil` for those cases with the intent that they will not be verified
         # against the DLDV where they will not be recognized
         #
-        case sex_attribute&.upcase
-        when 'M'
+        case sex_attribute
+        when 'Male'
           'male'
-        when 'F'
+        when 'Female'
           'female'
         end
       end
diff --git a/spec/fixtures/proofing/lexis_nexis/true_id/true_id_response_attention_barcode.json b/spec/fixtures/proofing/lexis_nexis/true_id/true_id_response_attention_barcode.json
index b65a8b12672..4ec00edb41f 100644
--- a/spec/fixtures/proofing/lexis_nexis/true_id/true_id_response_attention_barcode.json
+++ b/spec/fixtures/proofing/lexis_nexis/true_id/true_id_response_attention_barcode.json
@@ -694,11 +694,6 @@
         "Name": "Fields_PostalCode",
         "Values": [{"Value": "12345"}]
       },
-      {
-        "Group": "IDAUTH_FIELD_DATA",
-        "Name": "Fields_Sex",
-        "Values": [{"Value": "M"}]
-      },
       {
         "Group": "IDAUTH_FIELD_DATA",
         "Name": "Fields_Height",
diff --git a/spec/fixtures/proofing/lexis_nexis/true_id/true_id_response_attention_barcode_with_face_match_fail.json b/spec/fixtures/proofing/lexis_nexis/true_id/true_id_response_attention_barcode_with_face_match_fail.json
index b2a6d6421d2..fc51458f48b 100644
--- a/spec/fixtures/proofing/lexis_nexis/true_id/true_id_response_attention_barcode_with_face_match_fail.json
+++ b/spec/fixtures/proofing/lexis_nexis/true_id/true_id_response_attention_barcode_with_face_match_fail.json
@@ -714,11 +714,6 @@
         "Name": "Fields_PostalCode",
         "Values": [{"Value": "12345"}]
       },
-      {
-        "Group": "IDAUTH_FIELD_DATA",
-        "Name": "Fields_Sex",
-        "Values": [{"Value": "M"}]
-      },
       {
         "Group": "IDAUTH_FIELD_DATA",
         "Name": "Fields_Height",
diff --git a/spec/fixtures/proofing/lexis_nexis/true_id/true_id_response_failed_to_ocr_dob.json b/spec/fixtures/proofing/lexis_nexis/true_id/true_id_response_failed_to_ocr_dob.json
index 2e151deb30e..fedcb07d700 100644
--- a/spec/fixtures/proofing/lexis_nexis/true_id/true_id_response_failed_to_ocr_dob.json
+++ b/spec/fixtures/proofing/lexis_nexis/true_id/true_id_response_failed_to_ocr_dob.json
@@ -409,12 +409,7 @@
            "Name": "Fields_PostalCode",
            "Values": [{"Value": "12345"}]
         },
-                 {
-           "Group": "IDAUTH_FIELD_DATA",
-           "Name": "Fields_Sex",
-           "Values": [{"Value": "M"}]
-        },
-                 {
+        {
            "Group": "IDAUTH_FIELD_DATA",
            "Name": "Fields_ControlNumber",
            "Values": [{"Value": "6820051160"}]
diff --git a/spec/fixtures/proofing/lexis_nexis/true_id/true_id_response_failure_no_liveness.json b/spec/fixtures/proofing/lexis_nexis/true_id/true_id_response_failure_no_liveness.json
index d47c7b52a28..8ef023d6c7c 100644
--- a/spec/fixtures/proofing/lexis_nexis/true_id/true_id_response_failure_no_liveness.json
+++ b/spec/fixtures/proofing/lexis_nexis/true_id/true_id_response_failure_no_liveness.json
@@ -674,11 +674,6 @@
           "Name": "Fields_PostalCode",
           "Values": [{"Value": "02809-2366"}]
         },
-        {
-          "Group": "IDAUTH_FIELD_DATA",
-          "Name": "Fields_Sex",
-          "Values": [{"Value": "M"}]
-        },
         {
           "Group": "IDAUTH_FIELD_DATA",
           "Name": "Fields_ControlNumber",
diff --git a/spec/fixtures/proofing/lexis_nexis/true_id/true_id_response_failure_no_liveness_low_dpi.json b/spec/fixtures/proofing/lexis_nexis/true_id/true_id_response_failure_no_liveness_low_dpi.json
index 040084be529..b86089bc0d7 100644
--- a/spec/fixtures/proofing/lexis_nexis/true_id/true_id_response_failure_no_liveness_low_dpi.json
+++ b/spec/fixtures/proofing/lexis_nexis/true_id/true_id_response_failure_no_liveness_low_dpi.json
@@ -669,11 +669,6 @@
           "Name": "Fields_PostalCode",
           "Values": [{"Value": "02809-2366"}]
         },
-        {
-          "Group": "IDAUTH_FIELD_DATA",
-          "Name": "Fields_Sex",
-          "Values": [{"Value": "M"}]
-        },
         {
           "Group": "IDAUTH_FIELD_DATA",
           "Name": "Fields_ControlNumber",
diff --git a/spec/fixtures/proofing/lexis_nexis/true_id/true_id_response_failure_with_all_failures.json b/spec/fixtures/proofing/lexis_nexis/true_id/true_id_response_failure_with_all_failures.json
index 3d3282e16f2..2caf549db4e 100644
--- a/spec/fixtures/proofing/lexis_nexis/true_id/true_id_response_failure_with_all_failures.json
+++ b/spec/fixtures/proofing/lexis_nexis/true_id/true_id_response_failure_with_all_failures.json
@@ -669,11 +669,6 @@
           "Name": "Fields_PostalCode",
           "Values": [{"Value": "02809-2366"}]
         },
-        {
-          "Group": "IDAUTH_FIELD_DATA",
-          "Name": "Fields_Sex",
-          "Values": [{"Value": "M"}]
-        },
         {
           "Group": "IDAUTH_FIELD_DATA",
           "Name": "Fields_ControlNumber",
diff --git a/spec/fixtures/proofing/lexis_nexis/true_id/true_id_response_failure_with_face_match_fail.json b/spec/fixtures/proofing/lexis_nexis/true_id/true_id_response_failure_with_face_match_fail.json
index af9221a5f71..6da199b0bf9 100644
--- a/spec/fixtures/proofing/lexis_nexis/true_id/true_id_response_failure_with_face_match_fail.json
+++ b/spec/fixtures/proofing/lexis_nexis/true_id/true_id_response_failure_with_face_match_fail.json
@@ -669,11 +669,6 @@
           "Name": "Fields_PostalCode",
           "Values": [{"Value": "02809-2366"}]
         },
-        {
-          "Group": "IDAUTH_FIELD_DATA",
-          "Name": "Fields_Sex",
-          "Values": [{"Value": "M"}]
-        },
         {
           "Group": "IDAUTH_FIELD_DATA",
           "Name": "Fields_ControlNumber",
@@ -737,4 +732,4 @@
       }
     }
   ]
-}
\ No newline at end of file
+}
diff --git a/spec/fixtures/proofing/lexis_nexis/true_id/true_id_response_failure_with_face_match_pass.json b/spec/fixtures/proofing/lexis_nexis/true_id/true_id_response_failure_with_face_match_pass.json
index d82cd53bb5a..9c32330a468 100644
--- a/spec/fixtures/proofing/lexis_nexis/true_id/true_id_response_failure_with_face_match_pass.json
+++ b/spec/fixtures/proofing/lexis_nexis/true_id/true_id_response_failure_with_face_match_pass.json
@@ -669,11 +669,6 @@
           "Name": "Fields_PostalCode",
           "Values": [{"Value": "02809-2366"}]
         },
-        {
-          "Group": "IDAUTH_FIELD_DATA",
-          "Name": "Fields_Sex",
-          "Values": [{"Value": "M"}]
-        },
         {
           "Group": "IDAUTH_FIELD_DATA",
           "Name": "Fields_ControlNumber",
diff --git a/spec/fixtures/proofing/lexis_nexis/true_id/true_id_response_failure_with_liveness.json b/spec/fixtures/proofing/lexis_nexis/true_id/true_id_response_failure_with_liveness.json
index 9ae6ac15f2c..13aeae5800a 100644
--- a/spec/fixtures/proofing/lexis_nexis/true_id/true_id_response_failure_with_liveness.json
+++ b/spec/fixtures/proofing/lexis_nexis/true_id/true_id_response_failure_with_liveness.json
@@ -669,11 +669,6 @@
           "Name": "Fields_PostalCode",
           "Values": [{"Value": "02809-2366"}]
         },
-        {
-          "Group": "IDAUTH_FIELD_DATA",
-          "Name": "Fields_Sex",
-          "Values": [{"Value": "M"}]
-        },
         {
           "Group": "IDAUTH_FIELD_DATA",
           "Name": "Fields_ControlNumber",
diff --git a/spec/fixtures/proofing/lexis_nexis/true_id/true_id_response_success.json b/spec/fixtures/proofing/lexis_nexis/true_id/true_id_response_success.json
index 6b171049751..1439c76561e 100644
--- a/spec/fixtures/proofing/lexis_nexis/true_id/true_id_response_success.json
+++ b/spec/fixtures/proofing/lexis_nexis/true_id/true_id_response_success.json
@@ -697,15 +697,6 @@
             }
           ]
         },
-        {
-          "Group": "IDAUTH_FIELD_DATA",
-          "Name": "Fields_Sex",
-          "Values": [
-            {
-              "Value": "M"
-            }
-          ]
-        },
         {
           "Group": "IDAUTH_FIELD_DATA",
           "Name": "Fields_ControlNumber",
diff --git a/spec/services/doc_auth/lexis_nexis/responses/true_id_response_spec.rb b/spec/services/doc_auth/lexis_nexis/responses/true_id_response_spec.rb
index 4a2e5bb4dec..9c64557a9c1 100644
--- a/spec/services/doc_auth/lexis_nexis/responses/true_id_response_spec.rb
+++ b/spec/services/doc_auth/lexis_nexis/responses/true_id_response_spec.rb
@@ -133,7 +133,7 @@
         city: 'ANYTOWN',
         state: 'MD',
         dob: '1986-07-01',
-        sex: nil,
+        sex: 'male',
         height: 69,
         weight: nil,
         eye_color: nil,