diff --git a/block.py b/block.py
index 37e508a..1892530 100644
--- a/block.py
+++ b/block.py
@@ -14,7 +14,8 @@ def __main__(
         hd_score_s1: float,
         hd_score_s2: float,
         hd_score_s3: float,
-        hd_score_iso_m2: float
+        hd_score_iso_m2: float,
+        hd_score_g2: float
     ) -> dict:
 
     data = {
@@ -24,6 +25,7 @@ def __main__(
         "hd_score_s2": hd_score_s2,
         "hd_score_s3": hd_score_s3,
         "hd_score_iso_m2": hd_score_iso_m2,
+        "hd_score_g2": hd_score_g2
     }
 
     final = processing(data)
diff --git a/request_schema.json b/request_schema.json
index 8cfaab5..6db4557 100644
--- a/request_schema.json
+++ b/request_schema.json
@@ -10,6 +10,10 @@
       "type": ["number", "null"],
       "description": "HD Fraud Score G1"
     },
+    "hd_score_g2": {
+      "type": ["number", "null"],
+      "description": "HD Fraud Score G1"
+    },
     "hd_score_s1": {
       "type": ["number", "null"],
       "description": "HD Fraud Score S1"
diff --git a/score_processing.py b/score_processing.py
index 3d3d0eb..eceab98 100644
--- a/score_processing.py
+++ b/score_processing.py
@@ -12,26 +12,46 @@ def processing(data: dict) -> dict:
     score_threshold = 1200
     score_threshold2 = 1225
 
-    # ---- Compute hd_score1, hd_score2, final hd_score ----
+    # ---- Compute hd_score based on hierarchy ----
     try:
-        hd_score1 = max([
-            data["hd_score_s1"],
-            data["hd_score_s2"],
-            data["hd_score_g1"],
-            data["hd_score_s3"],
-            data["hd_score_m1"],
-        ])
+        reason_hierarchy = [
+            ("hd_score_s1", "S1 Triggered", score_threshold, True),
+            ("hd_score_s2", "S2 Triggered", score_threshold, True),
+            ("hd_score_g1", "G1 Triggered", score_threshold, True),
+            ("hd_score_s3", "S3 Triggered", score_threshold, True),
+            ("hd_score_m1", "M1 Triggered", score_threshold, True),
+            ("hd_score_iso_m2", "M2 Triggered", score_threshold2, False),
+            ("hd_score_g2", "G2 Triggered", score_threshold2, False),
+        ]
 
-        hd_score2 = data["hd_score_iso_m2"]
+        winning_score = None
+        winning_reason = "Pass"
+        winning_threshold = None
 
-        if hd_score1 > score_threshold:
-            hd_score = hd_score1
-        elif hd_score2 >= score_threshold2:
-            hd_score = hd_score2
-        else:
-            hd_score = max(hd_score1, hd_score2)
+        for key, reason, threshold, use_gt in reason_hierarchy:
+            score = data.get(key)
+            if score is None:
+                continue
+            passes = (score > threshold) if use_gt else (score >= threshold)
+            if passes:
+                winning_score = score
+                winning_reason = reason
+                winning_threshold = threshold
+                break
 
-        # logging.info(f"Computed hd_score1={hd_score1}, hd_score2={hd_score2}, final hd_score={hd_score}")
+        if winning_score is None:
+            winning_score = max([
+                data.get("hd_score_s1", 0),
+                data.get("hd_score_s2", 0),
+                data.get("hd_score_g1", 0),
+                data.get("hd_score_s3", 0),
+                data.get("hd_score_m1", 0),
+                data.get("hd_score_iso_m2", 0),
+                data.get("hd_score_g2", 0),
+            ])
+            winning_reason = "Pass"
+
+        hd_score = winning_score
 
     except Exception as e:
         logging.error(f"Error calculating hd_score values: {e}")
@@ -39,7 +59,7 @@ def processing(data: dict) -> dict:
 
     # ---- recommended_action ----
     try:
-        if hd_score1 > score_threshold or hd_score2 >= score_threshold2:
+        if winning_reason != "Pass":
             recommended_action = "Decline Application"
         else:
             recommended_action = "Pass Application"
@@ -52,14 +72,10 @@ def processing(data: dict) -> dict:
 
     # ---- description ----
     try:
-        if hd_score1 > score_threshold:
+        if winning_reason != "Pass":
+            threshold_used = winning_threshold if winning_threshold is not None else score_threshold
             description = (
-                f"HD Fraud Score is above the risk threshold {score_threshold}, "
-                f"Recommended action: Decline Application"
-            )
-        elif hd_score2 >= score_threshold2:
-            description = (
-                f"HD Fraud Score is above the risk threshold {score_threshold2}, "
+                f"HD Fraud Score is above the risk threshold {threshold_used}, "
                 f"Recommended action: Decline Application"
             )
         else:
@@ -74,35 +90,8 @@ def processing(data: dict) -> dict:
         return {}
 
     # ---- hd_action_reasoncode ----
-    try:
-        reason_hierarchy = [
-            ("hd_score_s1", "S1 Triggered"),
-            ("hd_score_s2", "S2 Triggered"),
-            ("hd_score_g1", "G1 Triggered"),
-            ("hd_score_s3", "S3 Triggered"),
-            ("hd_score_m1", "M1 Triggered"),
-            ("hd_score_iso_m2", "M2 Triggered"),  # NEW
-        ]
-
-        hd_action_reasoncode = "Pass"
-
-        for key, reason in reason_hierarchy:
-            score = data[key]
-
-            if key == "hd_score_iso_m2":
-                if score >= score_threshold2:
-                    hd_action_reasoncode = reason
-                    break
-            else:
-                if score > score_threshold:
-                    hd_action_reasoncode = reason
-                    break
-
-        logging.info(f"hd_action_reasoncode: {hd_action_reasoncode}")
-
-    except Exception as e:
-        logging.error(f"Error determining action_reasoncode: {e}")
-        return {}
+    hd_action_reasoncode = winning_reason
+    logging.info(f"hd_action_reasoncode: {hd_action_reasoncode}")
 
     # ---- Return only original 4 fields ----
     return {
@@ -111,5 +100,3 @@ def processing(data: dict) -> dict:
         "description": description,
         "hd_action_reasoncode": hd_action_reasoncode,
     }
-
-
diff --git a/test_block.py b/test_block.py
index cd06a67..8cd54a8 100644
--- a/test_block.py
+++ b/test_block.py
@@ -1,7 +1,7 @@
 import unittest
 from block import __main__
 
-data = {'hd_score_m1': 1173.0, 'hd_score_g1': 1203.0, 'hd_score_s1': 1240.0, 'hd_score_s2': 0, 'hd_score_s3': 0, 'hd_score_iso_m2': 1001.0}
+data = {'hd_score_m1': 1173.0, 'hd_score_g1': 1203.0, 'hd_score_s1': 1240.0, 'hd_score_s2': 0, 'hd_score_s3': 0, 'hd_score_iso_m2': 1001.0, 'hd_score_g2': 0.0}
 
 class TestBlock(unittest.TestCase):
     def test_main_success(self):