diff --git a/homeassistant/components/iqvia/__init__.py b/homeassistant/components/iqvia/__init__.py
index aad505e23c4..def58d60201 100644
--- a/homeassistant/components/iqvia/__init__.py
+++ b/homeassistant/components/iqvia/__init__.py
@@ -2,10 +2,10 @@
 from __future__ import annotations
 
 import asyncio
-from collections.abc import Awaitable, Callable
+from collections.abc import Callable, Coroutine
 from datetime import timedelta
 from functools import partial
-from typing import Any, cast
+from typing import Any
 
 from pyiqvia import Client
 from pyiqvia.errors import IQVIAError
@@ -57,16 +57,14 @@ async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
     client.disable_request_retries()
 
     async def async_get_data_from_api(
-        api_coro: Callable[..., Awaitable]
+        api_coro: Callable[..., Coroutine[Any, Any, dict[str, Any]]]
     ) -> dict[str, Any]:
         """Get data from a particular API coroutine."""
         try:
-            data = await api_coro()
+            return await api_coro()
         except IQVIAError as err:
             raise UpdateFailed from err
 
-        return cast(dict[str, Any], data)
-
     coordinators = {}
     init_data_update_tasks = []
 
@@ -115,14 +113,14 @@ async def async_unload_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
     return unload_ok
 
 
-class IQVIAEntity(CoordinatorEntity):
+class IQVIAEntity(CoordinatorEntity[DataUpdateCoordinator[dict[str, Any]]]):
     """Define a base IQVIA entity."""
 
     _attr_has_entity_name = True
 
     def __init__(
         self,
-        coordinator: DataUpdateCoordinator,
+        coordinator: DataUpdateCoordinator[dict[str, Any]],
         entry: ConfigEntry,
         description: EntityDescription,
     ) -> None:
diff --git a/homeassistant/components/iqvia/diagnostics.py b/homeassistant/components/iqvia/diagnostics.py
index 664467b0702..6f2df6bd7d3 100644
--- a/homeassistant/components/iqvia/diagnostics.py
+++ b/homeassistant/components/iqvia/diagnostics.py
@@ -35,7 +35,9 @@ async def async_get_config_entry_diagnostics(
     hass: HomeAssistant, entry: ConfigEntry
 ) -> dict[str, Any]:
     """Return diagnostics for a config entry."""
-    coordinators: dict[str, DataUpdateCoordinator] = hass.data[DOMAIN][entry.entry_id]
+    coordinators: dict[str, DataUpdateCoordinator[dict[str, Any]]] = hass.data[DOMAIN][
+        entry.entry_id
+    ]
 
     return {
         "entry": async_redact_data(entry.as_dict(), TO_REDACT),
diff --git a/homeassistant/components/iqvia/sensor.py b/homeassistant/components/iqvia/sensor.py
index 455711c0ead..0052e90880b 100644
--- a/homeassistant/components/iqvia/sensor.py
+++ b/homeassistant/components/iqvia/sensor.py
@@ -2,7 +2,7 @@
 from __future__ import annotations
 
 from statistics import mean
-from typing import NamedTuple
+from typing import Any, NamedTuple, cast
 
 import numpy as np
 
@@ -247,10 +247,11 @@ class IndexSensor(IQVIAEntity, SensorEntity):
         key = self.entity_description.key.split("_")[-1].title()
 
         try:
-            [period] = [p for p in data["periods"] if p["Type"] == key]
-        except ValueError:
+            [period] = [p for p in data["periods"] if p["Type"] == key]  # type: ignore[index]
+        except TypeError:
             return
 
+        data = cast(dict[str, Any], data)
         [rating] = [
             i.label for i in RATING_MAPPING if i.minimum <= period["Index"] <= i.maximum
         ]