diff --git a/packages/esm-patient-orders-app/src/lab-results/lab-results-form.test.tsx b/packages/esm-patient-orders-app/src/lab-results/lab-results-form.test.tsx
index c2c827e11a..5f9cafbaa0 100644
--- a/packages/esm-patient-orders-app/src/lab-results/lab-results-form.test.tsx
+++ b/packages/esm-patient-orders-app/src/lab-results/lab-results-form.test.tsx
@@ -59,6 +59,7 @@ describe('LabResultsForm', () => {
         lowCritical: 40,
         lowNormal: 50,
         units: 'mg/dL',
+        allowDecimal: false,
       } as LabOrderConcept,
       isLoading: false,
       error: null,
@@ -96,6 +97,58 @@ describe('LabResultsForm', () => {
     });
   });
 
+  test('validate when we have a concept with allowDecimal set to true', async () => {
+    const user = userEvent.setup();
+    // if allowDecimal is true, we should allow decimal values
+    mockUseOrderConceptByUuid.mockReturnValue({
+      concept: {
+        uuid: 'concept-uuid',
+        display: 'Test Concept',
+        setMembers: [],
+        datatype: { display: 'Numeric', hl7Abbreviation: 'NM' },
+        hiAbsolute: 100,
+        lowAbsolute: null,
+        lowCritical: null,
+        lowNormal: null,
+        hiCritical: null,
+        hiNormal: null,
+        units: 'mg/dL',
+        allowDecimal: true,
+      } as LabOrderConcept,
+      isLoading: false,
+      error: null,
+      isValidating: false,
+      mutate: jest.fn(),
+    });
+    render(<LabResultsForm {...testProps} />);
+
+    const input = await screen.findByLabelText(`Test Concept (0 - 100 mg/dL)`);
+    await user.type(input, '50.5');
+
+    const saveButton = screen.getByRole('button', { name: /Save and close/i });
+    await user.click(saveButton);
+
+    await waitFor(() => {
+      expect(screen.queryByText('Test Concept must be a whole number')).not.toBeInTheDocument();
+    });
+  });
+
+  test('validate when we have a concept with allowDecimal set to null', async () => {
+    const user = userEvent.setup();
+    render(<LabResultsForm {...testProps} />);
+
+    const input = await screen.findByLabelText(`Test Concept (0 - 100 mg/dL)`);
+    await user.type(input, '50.5');
+
+    const saveButton = screen.getByRole('button', { name: /Save and close/i });
+    await user.click(saveButton);
+
+    // if allowDecimal is null or false, we should not allow decimal values
+    await waitFor(() => {
+      expect(screen.getByText('Test Concept must be a whole number')).toBeInTheDocument();
+    });
+  });
+
   test('validate numeric input with negative value', async () => {
     const user = userEvent.setup();
     render(<LabResultsForm {...testProps} />);
diff --git a/packages/esm-patient-orders-app/src/lab-results/lab-results.resource.ts b/packages/esm-patient-orders-app/src/lab-results/lab-results.resource.ts
index f42209bc1b..569dc1ae6b 100644
--- a/packages/esm-patient-orders-app/src/lab-results/lab-results.resource.ts
+++ b/packages/esm-patient-orders-app/src/lab-results/lab-results.resource.ts
@@ -10,8 +10,8 @@ const labEncounterRepresentation =
   'obs:(uuid,obsDatetime,voided,groupMembers,formFieldNamespace,formFieldPath,order:(uuid,display),concept:(uuid,name:(uuid,name)),' +
   'value:(uuid,display,name:(uuid,name),names:(uuid,conceptNameType,name))))';
 const labConceptRepresentation =
-  'custom:(uuid,display,name,datatype,set,answers,hiNormal,hiAbsolute,hiCritical,lowNormal,lowAbsolute,lowCritical,units,' +
-  'setMembers:(uuid,display,answers,datatype,hiNormal,hiAbsolute,hiCritical,lowNormal,lowAbsolute,lowCritical,units))';
+  'custom:(uuid,display,name,datatype,set,answers,hiNormal,hiAbsolute,hiCritical,lowNormal,lowAbsolute,lowCritical,units,allowDecimal,' +
+  'setMembers:(uuid,display,answers,datatype,hiNormal,hiAbsolute,hiCritical,lowNormal,lowAbsolute,lowCritical,units,allowDecimal))';
 const conceptObsRepresentation = 'custom:(uuid,display,concept:(uuid,display),groupMembers,value)';
 
 type NullableNumber = number | null | undefined;
@@ -33,6 +33,7 @@ export interface LabOrderConcept {
   lowNormal?: NullableNumber;
   lowAbsolute?: NullableNumber;
   lowCritical?: NullableNumber;
+  allowDecimal?: boolean | null;
   units?: string;
 }
 
@@ -126,26 +127,26 @@ export async function updateOrderResult(
   orderPayload: OrderDiscontinuationPayload,
   abortController: AbortController,
 ) {
-  const updateOrderCall = await openmrsFetch(`${restBaseUrl}/order`, {
+  const saveEncounter = await openmrsFetch(`${restBaseUrl}/encounter/${encounterUuid}`, {
     method: 'POST',
     headers: {
       'Content-Type': 'application/json',
     },
     signal: abortController.signal,
-    body: orderPayload,
+    body: obsPayload,
   });
 
-  if (updateOrderCall.status === 201) {
-    const saveEncounter = await openmrsFetch(`${restBaseUrl}/encounter/${encounterUuid}`, {
+  if (saveEncounter.ok) {
+    const updateOrderCall = await openmrsFetch(`${restBaseUrl}/order`, {
       method: 'POST',
       headers: {
         'Content-Type': 'application/json',
       },
       signal: abortController.signal,
-      body: obsPayload,
+      body: orderPayload,
     });
 
-    if (saveEncounter.ok) {
+    if (updateOrderCall.status === 201) {
       const fulfillOrder = await openmrsFetch(`${restBaseUrl}/order/${orderUuid}/fulfillerdetails/`, {
         method: 'POST',
         headers: {
diff --git a/packages/esm-patient-orders-app/src/lab-results/useLabResultsFormSchema.tsx b/packages/esm-patient-orders-app/src/lab-results/useLabResultsFormSchema.tsx
index 2a3ee3e4f0..8982e90eaf 100644
--- a/packages/esm-patient-orders-app/src/lab-results/useLabResultsFormSchema.tsx
+++ b/packages/esm-patient-orders-app/src/lab-results/useLabResultsFormSchema.tsx
@@ -105,16 +105,33 @@ const createNumericSchema = (
   upperLimit: number | null | undefined,
   lowerLimit: number | null | undefined,
 ): z.ZodType => {
+  const { allowDecimal, display } = labOrderConcept;
+  const processNumber = (val: unknown) => {
+    if (val === '' || val === null || val === undefined) return undefined;
+    const parsed = Number(val);
+    if (isNaN(parsed)) return undefined;
+    return parsed;
+  };
+
   let baseSchema = z
-    .preprocess((val) => {
-      if (val === '' || val === null || val === undefined) return undefined;
-      const parsed = Number(val);
-      return isNaN(parsed) ? undefined : parsed;
-    }, z.number().optional())
+    .preprocess(processNumber, z.number().optional())
     .refine((val) => val === undefined || !isNaN(val), {
-      message: `${labOrderConcept.display} must be a valid number`,
-    });
-
+      message: `${display} must be a valid number`,
+    })
+    .refine(
+      (val) => {
+        if (val === undefined) return true;
+        if (!allowDecimal) {
+          return Number.isInteger(val);
+        }
+        return true;
+      },
+      {
+        message: !allowDecimal ? `${display} must be a whole number` : `${display} must be a valid number`,
+      },
+    );
+
+  // Add range validations
   const hasLowerLimit = lowerLimit !== null && lowerLimit !== undefined;
   const hasUpperLimit = upperLimit !== null && upperLimit !== undefined;
 
@@ -124,19 +141,19 @@ const createNumericSchema = (
 
   if (hasLowerLimit && hasUpperLimit) {
     return baseSchema.refine((val) => val === undefined || (val >= lowerLimit && val <= upperLimit), {
-      message: `${labOrderConcept.display} must be between ${lowerLimit} and ${upperLimit}`,
+      message: `${display} must be between ${lowerLimit} and ${upperLimit}`,
     });
   }
 
   if (hasLowerLimit) {
     return baseSchema.refine((val) => val === undefined || val >= lowerLimit, {
-      message: `${labOrderConcept.display} must be greater than or equal to ${lowerLimit}`,
+      message: `${display} must be greater than or equal to ${lowerLimit}`,
     });
   }
 
   if (hasUpperLimit) {
     return baseSchema.refine((val) => val === undefined || val <= upperLimit, {
-      message: `${labOrderConcept.display} must be less than or equal to ${upperLimit}`,
+      message: `${display} must be less than or equal to ${upperLimit}`,
     });
   }
 };