Index: firmware/App/Drivers/TemperatureSensors.c
===================================================================
diff -u -r830213bc6dcc1a684610caf78c79d55f2cb41e93 -r50144ec3e96785cf76d5bfd22ee65029c82e732b
--- firmware/App/Drivers/TemperatureSensors.c	(.../TemperatureSensors.c)	(revision 830213bc6dcc1a684610caf78c79d55f2cb41e93)
+++ firmware/App/Drivers/TemperatureSensors.c	(.../TemperatureSensors.c)	(revision 50144ec3e96785cf76d5bfd22ee65029c82e732b)
@@ -7,8 +7,8 @@
 *
 * @file    TemperatureSensors.c
 *
-* @author  (last)      Vinayakam Mani
-* @date    (last)      18-Sep-2025
+* @author  (last)      Varshini Nagabooshanam
+* @date    (last)      12-Jan-2026
 *
 * @author  (original)  Vinayakam Mani
 * @date    (original)  25-Sep-2024
@@ -132,6 +132,11 @@
     tempSensors[ D50_TEMP ].zeroDegreeResistance  = PRIMARY_HEATER_TEMP_SENSORS_0_DEGREE_RESISTANCE;
     tempSensors[ D50_TEMP ].maxAllowedTemp        = TEMP_SENSORS_MAX_ALLOWED_DEGREE_C;
 
+    tempSensors[ D99_TEMP ].gain                  = PRIMARY_HEATER_TEMP_SENSORS_GAIN;
+    tempSensors[ D99_TEMP ].refResistance         = PRIMARY_HEATER_TEMP_SENSORS_REF_RESISTANCE;
+    tempSensors[ D99_TEMP ].zeroDegreeResistance  = PRIMARY_HEATER_TEMP_SENSORS_0_DEGREE_RESISTANCE;
+    tempSensors[ D99_TEMP ].maxAllowedTemp        = TEMP_SENSORS_MAX_ALLOWED_DEGREE_C;
+
     // Board temperature sensors conversion coefficient
     tempSensors[ BRD_TEMP ].conversionCoeff            = conversionCoeff;
     tempSensors[ BRD_TEMP ].maxAllowedTemp             = NON_FLUID_PATH_TEMP_SENSORS_MAX_ALLOWED_DEGREE_C;
@@ -189,6 +194,7 @@
     processTempSnsrsADCRead( D78_TEMP, getFPGAD78Temp() );
     processTempSnsrsADCRead( D4_TEMP, getFPGAD4Temp() );
     processTempSnsrsADCRead( D50_TEMP, getFPGAD50Temp() );
+    processTempSnsrsADCRead( D99_TEMP, getFPGAD99Temp() );
 
     //TODO: Read Board temperature
     //processTempSnsrsADCRead( TEMPSENSORS_INTERNAL_COND_TEMP_SENSOR, getFPGACondSnsrInternalTemp() );
@@ -314,6 +320,7 @@
         case D78_TEMP:
         case D4_TEMP:
         case D50_TEMP:
+        case D99_TEMP:
             temperature = getADC2TempConversion( avgADCReads, (U32)tempSensors [ sensorIndex ].gain, (U32)tempSensors [ sensorIndex ].refResistance,
                                                  (U32)tempSensors [ sensorIndex ].zeroDegreeResistance, tempSensors [ sensorIndex ].conversionCoeff );
             break;
@@ -408,6 +415,10 @@
             //calId = CAL_DATA_TRIM_HEATER_TEMP;
             break;
 
+        case D99_TEMP:
+            //calId = CAL_DATA_DIALYSATE_TEMP;
+            break;
+
         default:
             // Set the calibration temperature value as num of meaning calibration is not needed for the provided sensor
             //calId = NUM_OF_CAL_DATA_TEMP_SENSORS;