diff --git a/app/Controllers/Billing/CaseMaster.php b/app/Controllers/Billing/CaseMaster.php
index b0dc82a..341b954 100644
--- a/app/Controllers/Billing/CaseMaster.php
+++ b/app/Controllers/Billing/CaseMaster.php
@@ -570,7 +570,7 @@ class CaseMaster extends BaseController
                     date_format(i.inv_date,'%d-%m-%Y') AS str_date,
                     concat(t.item_name) AS Description,i.invoice_code AS Code,
                     t.item_amount AS Amount,t.org_code AS orgcode,
-                    coalesce(t.discount_amount,0) AS discount_amount,
+                    case when it.item_rate is not null and it.item_rate <> t.item_rate then 1 else 0 end AS discount_amount,
                     it.item_rate AS d_rate
                 from invoice_master i
                 join organization_case_master c on i.insurance_case_id = c.id
diff --git a/app/Models/OrganizationCaseModel.php b/app/Models/OrganizationCaseModel.php
index 7ee3ffc..6daf2df 100644
--- a/app/Models/OrganizationCaseModel.php
+++ b/app/Models/OrganizationCaseModel.php
@@ -60,7 +60,7 @@ class OrganizationCaseModel extends Model
                     date_format(i.inv_date,'%d-%m-%Y') AS str_date,
                     concat(t.item_name) AS Description,i.invoice_code AS Code,
                     t.item_amount AS Amount,t.org_code AS orgcode,
-                    coalesce(t.discount_amount,0) AS discount_amount,
+                    case when it.item_rate is not null and it.item_rate <> t.item_rate then 1 else 0 end AS discount_amount,
                     it.item_rate AS d_rate
                 from invoice_master i
                 join organization_case_master c on i.insurance_case_id = c.id