diff --git a/homeassistant/components/dexcom/__init__.py b/homeassistant/components/dexcom/__init__.py
index 2053f266eb5..5ff95fae47e 100644
--- a/homeassistant/components/dexcom/__init__.py
+++ b/homeassistant/components/dexcom/__init__.py
@@ -3,7 +3,7 @@
 from datetime import timedelta
 import logging
 
-from pydexcom import AccountError, Dexcom, SessionError
+from pydexcom import AccountError, Dexcom, GlucoseReading, SessionError
 
 from homeassistant.config_entries import ConfigEntry
 from homeassistant.const import CONF_PASSWORD, CONF_UNIT_OF_MEASUREMENT, CONF_USERNAME
@@ -43,7 +43,7 @@ async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
         except SessionError as error:
             raise UpdateFailed(error) from error
 
-    coordinator = DataUpdateCoordinator(
+    coordinator = DataUpdateCoordinator[GlucoseReading](
         hass,
         _LOGGER,
         name=DOMAIN,
diff --git a/homeassistant/components/dexcom/const.py b/homeassistant/components/dexcom/const.py
index 25abb1bed26..487a844eb2b 100644
--- a/homeassistant/components/dexcom/const.py
+++ b/homeassistant/components/dexcom/const.py
@@ -5,19 +5,6 @@ from homeassistant.const import Platform
 DOMAIN = "dexcom"
 PLATFORMS = [Platform.SENSOR]
 
-GLUCOSE_TREND_ICON = [
-    "mdi:help",
-    "mdi:arrow-up-thick",
-    "mdi:arrow-up",
-    "mdi:arrow-top-right",
-    "mdi:arrow-right",
-    "mdi:arrow-bottom-right",
-    "mdi:arrow-down",
-    "mdi:arrow-down-thick",
-    "mdi:help",
-    "mdi:alert-circle-outline",
-]
-
 MMOL_L = "mmol/L"
 MG_DL = "mg/dL"
 
diff --git a/homeassistant/components/dexcom/icons.json b/homeassistant/components/dexcom/icons.json
index 9d0b3534e17..de8355ce861 100644
--- a/homeassistant/components/dexcom/icons.json
+++ b/homeassistant/components/dexcom/icons.json
@@ -3,6 +3,18 @@
     "sensor": {
       "glucose_value": {
         "default": "mdi:diabetes"
+      },
+      "glucose_trend": {
+        "default": "mdi:help",
+        "state": {
+          "rising_quickly": "mdi:arrow-up-thick",
+          "rising": "mdi:arrow-up",
+          "rising_slightly": "mdi:arrow-top-right",
+          "steady": "mdi:arrow-right",
+          "falling_slightly": "mdi:arrow-bottom-right",
+          "falling": "mdi:arrow-down",
+          "falling_quickly": "mdi:arrow-down-thick"
+        }
       }
     }
   }
diff --git a/homeassistant/components/dexcom/sensor.py b/homeassistant/components/dexcom/sensor.py
index 4c2e46ba06c..10b30f39fcb 100644
--- a/homeassistant/components/dexcom/sensor.py
+++ b/homeassistant/components/dexcom/sensor.py
@@ -2,7 +2,9 @@
 
 from __future__ import annotations
 
-from homeassistant.components.sensor import SensorEntity
+from pydexcom import GlucoseReading
+
+from homeassistant.components.sensor import SensorDeviceClass, SensorEntity
 from homeassistant.config_entries import ConfigEntry
 from homeassistant.const import CONF_UNIT_OF_MEASUREMENT, CONF_USERNAME
 from homeassistant.core import HomeAssistant
@@ -13,7 +15,17 @@ from homeassistant.helpers.update_coordinator import (
     DataUpdateCoordinator,
 )
 
-from .const import DOMAIN, GLUCOSE_TREND_ICON, MG_DL
+from .const import DOMAIN, MG_DL
+
+TRENDS = {
+    1: "rising_quickly",
+    2: "rising",
+    3: "rising_slightly",
+    4: "steady",
+    5: "falling_slightly",
+    6: "falling",
+    7: "falling_quickly",
+}
 
 
 async def async_setup_entry(
@@ -35,13 +47,19 @@ async def async_setup_entry(
     )
 
 
-class DexcomSensorEntity(CoordinatorEntity, SensorEntity):
+class DexcomSensorEntity(
+    CoordinatorEntity[DataUpdateCoordinator[GlucoseReading]], SensorEntity
+):
     """Base Dexcom sensor entity."""
 
     _attr_has_entity_name = True
 
     def __init__(
-        self, coordinator: DataUpdateCoordinator, username: str, entry_id: str, key: str
+        self,
+        coordinator: DataUpdateCoordinator[GlucoseReading],
+        username: str,
+        entry_id: str,
+        key: str,
     ) -> None:
         """Initialize the sensor."""
         super().__init__(coordinator)
@@ -81,6 +99,8 @@ class DexcomGlucoseTrendSensor(DexcomSensorEntity):
     """Representation of a Dexcom glucose trend sensor."""
 
     _attr_translation_key = "glucose_trend"
+    _attr_device_class = SensorDeviceClass.ENUM
+    _attr_options = list(TRENDS.values())
 
     def __init__(
         self, coordinator: DataUpdateCoordinator, username: str, entry_id: str
@@ -89,15 +109,15 @@ class DexcomGlucoseTrendSensor(DexcomSensorEntity):
         super().__init__(coordinator, username, entry_id, "trend")
 
     @property
-    def icon(self):
-        """Return the icon for the frontend."""
-        if self.coordinator.data:
-            return GLUCOSE_TREND_ICON[self.coordinator.data.trend]
-        return GLUCOSE_TREND_ICON[0]
-
-    @property
-    def native_value(self):
+    def native_value(self) -> str | None:
         """Return the state of the sensor."""
         if self.coordinator.data:
-            return self.coordinator.data.trend_description
+            return TRENDS.get(self.coordinator.data.trend)
         return None
+
+    @property
+    def available(self) -> bool:
+        """Return if entity is available."""
+        return super().available and (
+            self.coordinator.data is None or self.coordinator.data.trend != 9
+        )
diff --git a/homeassistant/components/dexcom/strings.json b/homeassistant/components/dexcom/strings.json
index 7efc2708bcc..91b5725d918 100644
--- a/homeassistant/components/dexcom/strings.json
+++ b/homeassistant/components/dexcom/strings.json
@@ -35,7 +35,16 @@
         "name": "Glucose value"
       },
       "glucose_trend": {
-        "name": "Glucose trend"
+        "name": "Glucose trend",
+        "state": {
+          "rising_quickly": "Rising quickly",
+          "rising": "Rising",
+          "rising_slightly": "Rising slightly",
+          "steady": "Steady",
+          "falling_slightly": "Falling slightly",
+          "falling": "Falling",
+          "falling_quickly": "Falling quickly"
+        }
       }
     }
   }