diff --git a/app/Controllers/OrderTestController.php b/app/Controllers/OrderTestController.php
index 8c36f00..7ef36db 100755
--- a/app/Controllers/OrderTestController.php
+++ b/app/Controllers/OrderTestController.php
@@ -88,9 +88,7 @@ class OrderTestController extends Controller {
                 'OrderStatus' => 'order_status',
             ])[0];
 
-            // Include specimens and tests
-            $row['Specimens'] = $this->getOrderSpecimens($row['InternalOID']);
-            $row['Tests'] = $this->getOrderTests($row['InternalOID']);
+            $row['Tests'] = $this->getOrderTestsCompact($row['InternalOID']);
 
             return $this->respond([
                 'status' => 'success',
@@ -125,6 +123,18 @@ class OrderTestController extends Controller {
         return $specimens;
     }
 
+    private function getOrderTestsCompact($internalOID) {
+        return $this->db->table('patres pr')
+            ->distinct()
+            ->select('pr.TestSiteID, tds.TestSiteCode, tds.TestSiteName')
+            ->join('testdefsite tds', 'tds.TestSiteID = pr.TestSiteID', 'left')
+            ->where('pr.OrderID', $internalOID)
+            ->where('pr.DelDate IS NULL')
+            ->orderBy('tds.TestSiteCode', 'ASC')
+            ->get()
+            ->getResultArray();
+    }
+
     private function getOrderTests($internalOID) {
         $tests = $this->db->table('patres pr')
             ->select('pr.*, tds.TestSiteCode, tds.TestSiteName, tds.TestType, tds.SeqScr AS TestSeqScr, tds.SeqRpt AS TestSeqRpt, tds.DisciplineID, d.DisciplineCode, d.DisciplineName, d.SeqScr AS DisciplineSeqScr, d.SeqRpt AS DisciplineSeqRpt')
diff --git a/composer.phar b/composer.phar
deleted file mode 100755
index 3d1b983..0000000
Binary files a/composer.phar and /dev/null differ
diff --git a/public/api-docs.bundled.yaml b/public/api-docs.bundled.yaml
index ca0a6d1..820bd02 100755
--- a/public/api-docs.bundled.yaml
+++ b/public/api-docs.bundled.yaml
@@ -1437,7 +1437,7 @@ paths:
       tags:
         - Order
       summary: Get order by ID
-      description: Returns order details with associated specimens and tests
+      description: Returns compact order details with test list only
       security:
         - bearerAuth: []
       parameters:
@@ -1449,7 +1449,7 @@ paths:
           description: Order ID (e.g., 0025030300001)
       responses:
         '200':
-          description: Order details with specimens and tests
+          description: Compact order details with tests
           content:
             application/json:
               schema:
@@ -1460,7 +1460,7 @@ paths:
                   message:
                     type: string
                   data:
-                    $ref: '#/components/schemas/OrderTest'
+                    $ref: '#/components/schemas/OrderTestCompact'
     patch:
       tags:
         - Order
@@ -7790,6 +7790,90 @@ components:
           items:
             $ref: '#/components/schemas/OrderTestItem'
           description: Test results (patres) for this order
+    OrderTestCompact:
+      type: object
+      properties:
+        InternalOID:
+          type: integer
+          description: Internal order ID
+        OrderID:
+          type: string
+          description: Order ID (e.g., 0025030300001)
+        PlacerID:
+          type: string
+          nullable: true
+        InternalPID:
+          type: integer
+          description: Patient internal ID
+        SiteID:
+          type: integer
+        PVADTID:
+          type: integer
+          description: Visit ADT ID
+        ReqApp:
+          type: string
+          nullable: true
+        Priority:
+          type: string
+          enum:
+            - R
+            - S
+            - U
+          description: |
+            R: Routine
+            S: Stat
+            U: Urgent
+        PriorityLabel:
+          type: string
+          description: Priority display text
+        TrnDate:
+          type: string
+          format: date-time
+          description: Transaction/Order date
+        EffDate:
+          type: string
+          format: date-time
+          description: Effective date
+        CreateDate:
+          type: string
+          format: date-time
+        OrderStatus:
+          type: string
+          enum:
+            - ORD
+            - SCH
+            - ANA
+            - VER
+            - REV
+            - REP
+          description: |
+            ORD: Ordered
+            SCH: Scheduled
+            ANA: Analysis
+            VER: Verified
+            REV: Reviewed
+            REP: Reported
+        OrderStatusLabel:
+          type: string
+          description: Order status display text
+        Tests:
+          type: array
+          items:
+            $ref: '#/components/schemas/OrderTestCompactItem'
+          description: Compact test list for this order
+    OrderTestCompactItem:
+      type: object
+      properties:
+        TestSiteID:
+          type: integer
+          description: Test definition site ID
+        TestSiteCode:
+          type: string
+          description: Test code
+        TestSiteName:
+          type: string
+          description: Test name
+          nullable: true
     OrderItem:
       type: object
       properties:
diff --git a/public/api-docs.yaml b/public/api-docs.yaml
index 6345cc1..593f6ad 100755
--- a/public/api-docs.yaml
+++ b/public/api-docs.yaml
@@ -22,45 +22,45 @@ servers:
   - url: https://clqms01-api.services-summit.my.id/
     description: Production server
 
-tags:
-  - name: Authentication
-    description: User authentication and session management
-  - name: Patient
-    description: Patient registration and management
-  - name: Patient Visit
-    description: Patient visit/encounter management
-  - name: Organization
-    description: Organization structure (accounts, sites, disciplines, departments, workstations)
-  - name: Location
-    description: Location management (rooms, wards, buildings)
-  - name: Equipment
-    description: Laboratory equipment and instrument management
-  - name: Specimen
-    description: Specimen and container management
-  - name: Test
-    description: Test definitions and test catalog
-  - name: Rule
-    description: Rule engine - rules can be linked to multiple tests via testrule mapping table
-  - name: Calculation
-    description: Lightweight calculator endpoint for retrieving computed values by code or name
-  - name: Order
-    description: Laboratory order management
-  - name: Result
-    description: Patient results reporting with auto-validation
-  - name: Report
-    description: Lab report generation (HTML view)
-  - name: Edge API
-    description: Instrument integration endpoints
-  - name: Contact
-    description: Contact management (doctors, practitioners, etc.)
-  - name: ValueSet
-    description: Value set definitions and items
-  - name: User
-    description: User management and administration
-  - name: Demo
-    description: Demo/test endpoints (no authentication)
-  - name: Audit
-    description: Audit log retrieval and filtering
+tags:
+  - name: Authentication
+    description: User authentication and session management
+  - name: Patient
+    description: Patient registration and management
+  - name: Patient Visit
+    description: Patient visit/encounter management
+  - name: Organization
+    description: Organization structure (accounts, sites, disciplines, departments, workstations)
+  - name: Location
+    description: Location management (rooms, wards, buildings)
+  - name: Equipment
+    description: Laboratory equipment and instrument management
+  - name: Specimen
+    description: Specimen and container management
+  - name: Test
+    description: Test definitions and test catalog
+  - name: Rule
+    description: Rule engine - rules can be linked to multiple tests via testrule mapping table
+  - name: Calculation
+    description: Lightweight calculator endpoint for retrieving computed values by code or name
+  - name: Order
+    description: Laboratory order management
+  - name: Result
+    description: Patient results reporting with auto-validation
+  - name: Report
+    description: Lab report generation (HTML view)
+  - name: Edge API
+    description: Instrument integration endpoints
+  - name: Contact
+    description: Contact management (doctors, practitioners, etc.)
+  - name: ValueSet
+    description: Value set definitions and items
+  - name: User
+    description: User management and administration
+  - name: Demo
+    description: Demo/test endpoints (no authentication)
+  - name: Audit
+    description: Audit log retrieval and filtering
 
 components:
   securitySchemes:
@@ -153,6 +153,10 @@ components:
       $ref: './components/schemas/orders.yaml#/OrderTestList'
     OrderTest:
       $ref: './components/schemas/orders.yaml#/OrderTest'
+    OrderTestCompact:
+      $ref: './components/schemas/orders.yaml#/OrderTestCompact'
+    OrderTestCompactItem:
+      $ref: './components/schemas/orders.yaml#/OrderTestCompactItem'
     OrderItem:
       $ref: './components/schemas/orders.yaml#/OrderItem'
 
@@ -190,13 +194,13 @@ components:
     UserListResponse:
       $ref: './components/schemas/user.yaml#/UserListResponse'
 
-    # Rules schemas
-    RuleDef:
-      $ref: './components/schemas/rules.yaml#/RuleDef'
-    RuleWithDetails:
-      $ref: './components/schemas/rules.yaml#/RuleWithDetails'
-    TestRule:
-      $ref: './components/schemas/rules.yaml#/TestRule'  # Mapping table between rules and tests
+    # Rules schemas
+    RuleDef:
+      $ref: './components/schemas/rules.yaml#/RuleDef'
+    RuleWithDetails:
+      $ref: './components/schemas/rules.yaml#/RuleWithDetails'
+    TestRule:
+      $ref: './components/schemas/rules.yaml#/TestRule'  # Mapping table between rules and tests
 
 # Paths are in separate files in the paths/ directory
 # To view the complete API with all paths, use: api-docs.bundled.yaml
diff --git a/public/components/schemas/orders.yaml b/public/components/schemas/orders.yaml
index f29ef2e..973ed86 100755
--- a/public/components/schemas/orders.yaml
+++ b/public/components/schemas/orders.yaml
@@ -124,6 +124,83 @@ OrderTest:
         $ref: '#/OrderTestItem'
       description: Test results (patres) for this order
 
+OrderTestCompact:
+  type: object
+  properties:
+    InternalOID:
+      type: integer
+      description: Internal order ID
+    OrderID:
+      type: string
+      description: Order ID (e.g., 0025030300001)
+    PlacerID:
+      type: string
+      nullable: true
+    InternalPID:
+      type: integer
+      description: Patient internal ID
+    SiteID:
+      type: integer
+    PVADTID:
+      type: integer
+      description: Visit ADT ID
+    ReqApp:
+      type: string
+      nullable: true
+    Priority:
+      type: string
+      enum: [R, S, U]
+      description: |
+        R: Routine
+        S: Stat
+        U: Urgent
+    PriorityLabel:
+      type: string
+      description: Priority display text
+    TrnDate:
+      type: string
+      format: date-time
+      description: Transaction/Order date
+    EffDate:
+      type: string
+      format: date-time
+      description: Effective date
+    CreateDate:
+      type: string
+      format: date-time
+    OrderStatus:
+      type: string
+      enum: [ORD, SCH, ANA, VER, REV, REP]
+      description: |
+        ORD: Ordered
+        SCH: Scheduled
+        ANA: Analysis
+        VER: Verified
+        REV: Reviewed
+        REP: Reported
+    OrderStatusLabel:
+      type: string
+      description: Order status display text
+    Tests:
+      type: array
+      items:
+        $ref: '#/OrderTestCompactItem'
+      description: Compact test list for this order
+
+OrderTestCompactItem:
+  type: object
+  properties:
+    TestSiteID:
+      type: integer
+      description: Test definition site ID
+    TestSiteCode:
+      type: string
+      description: Test code
+    TestSiteName:
+      type: string
+      description: Test name
+      nullable: true
+
 OrderSpecimen:
   type: object
   properties:
diff --git a/public/paths/orders.yaml b/public/paths/orders.yaml
index 5addf5d..9c8b74b 100755
--- a/public/paths/orders.yaml
+++ b/public/paths/orders.yaml
@@ -196,7 +196,7 @@
   get:
     tags: [Order]
     summary: Get order by ID
-    description: Returns order details with associated specimens and tests
+    description: Returns compact order details with test list only
     security:
       - bearerAuth: []
     parameters:
@@ -208,7 +208,7 @@
         description: Order ID (e.g., 0025030300001)
     responses:
       '200':
-        description: Order details with specimens and tests
+        description: Compact order details with tests
         content:
           application/json:
             schema:
@@ -219,7 +219,7 @@
                 message:
                   type: string
                 data:
-                  $ref: '../components/schemas/orders.yaml#/OrderTest'
+                  $ref: '../components/schemas/orders.yaml#/OrderTestCompact'
 
   patch:
     tags: [Order]
diff --git a/tests/feature/OrderTest/OrderTestShowCompactTest.php b/tests/feature/OrderTest/OrderTestShowCompactTest.php
new file mode 100644
index 0000000..3223c1c
--- /dev/null
+++ b/tests/feature/OrderTest/OrderTestShowCompactTest.php
@@ -0,0 +1,118 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Tests\Feature\OrderTest;
+
+use App\Models\OrderTest\OrderTestModel;
+use App\Models\Patient\PatientModel;
+use App\Models\Test\TestDefSiteModel;
+use CodeIgniter\Test\CIUnitTestCase;
+use CodeIgniter\Test\FeatureTestTrait;
+use Firebase\JWT\JWT;
+
+class OrderTestShowCompactTest extends CIUnitTestCase
+{
+    use FeatureTestTrait;
+
+    protected string $token;
+    protected string $endpoint = 'api/ordertest';
+
+    protected function setUp(): void
+    {
+        parent::setUp();
+
+        $key = getenv('JWT_SECRET') ?: 'my-secret-key';
+        $payload = [
+            'iss' => 'localhost',
+            'aud' => 'localhost',
+            'iat' => time(),
+            'nbf' => time(),
+            'exp' => time() + 3600,
+            'uid' => 1,
+            'email' => 'admin@admin.com',
+        ];
+        $this->token = JWT::encode($payload, $key, 'HS256');
+    }
+
+    private function authHeaders(): array
+    {
+        return ['Cookie' => 'token=' . $this->token];
+    }
+
+    private function createOrderWithTest(): array
+    {
+        $patientModel = new PatientModel();
+        $patient = $patientModel->where('DelDate', null)->first();
+        $this->assertNotEmpty($patient, 'No active patient found for order show test.');
+
+        $testModel = new TestDefSiteModel();
+        $test = $testModel->where('EndDate', null)
+            ->where('TestType', 'TEST')
+            ->first();
+
+        if (!$test) {
+            $test = $testModel->where('EndDate', null)->first();
+        }
+
+        $this->assertNotEmpty($test, 'No active test definition found for order show test.');
+
+        $orderModel = new OrderTestModel();
+        $orderID = $orderModel->createOrder([
+            'InternalPID' => (int) $patient['InternalPID'],
+            'SiteID' => (int) ($test['SiteID'] ?? 1),
+            'Tests' => [
+                [
+                    'TestSiteID' => (int) $test['TestSiteID'],
+                ],
+            ],
+        ]);
+
+        $this->assertNotEmpty($orderID, 'Failed to create order for show test.');
+
+        return [$orderID, $test];
+    }
+
+    public function testShowReturnsCompactTestsOnly(): void
+    {
+        [$orderID, $test] = $this->createOrderWithTest();
+
+        $response = $this->withHeaders($this->authHeaders())
+            ->call('get', $this->endpoint . '/' . $orderID);
+
+        $response->assertStatus(200);
+
+        $json = json_decode($response->getJSON(), true);
+
+        $this->assertSame('success', $json['status'] ?? null);
+        $this->assertArrayHasKey('data', $json);
+        $this->assertArrayHasKey('Tests', $json['data']);
+        $this->assertArrayNotHasKey('Specimens', $json['data']);
+
+        $tests = $json['data']['Tests'];
+        $this->assertNotEmpty($tests, 'Compact tests list is empty.');
+
+        $firstTest = $tests[0];
+        $this->assertSame((int) $test['TestSiteID'], (int) $firstTest['TestSiteID']);
+        $this->assertArrayHasKey('TestSiteCode', $firstTest);
+        $this->assertArrayHasKey('TestSiteName', $firstTest);
+        $this->assertArrayNotHasKey('Result', $firstTest);
+        $this->assertArrayNotHasKey('Discipline', $firstTest);
+        $this->assertArrayNotHasKey('OrderID', $firstTest);
+        $this->assertArrayNotHasKey('InternalSID', $firstTest);
+        $this->assertArrayNotHasKey('SID', $firstTest);
+        $this->assertArrayNotHasKey('SampleID', $firstTest);
+    }
+
+    public function testShowNotFound(): void
+    {
+        $response = $this->withHeaders($this->authHeaders())
+            ->call('get', $this->endpoint . '/999999999');
+
+        $response->assertStatus(200);
+
+        $json = json_decode($response->getJSON(), true);
+        $this->assertSame('success', $json['status'] ?? null);
+        $this->assertNull($json['data'] ?? null);
+    }
+}