ICD11: gracefully return None if issues with redis (#2231)

Co-authored-by: Vignesh Hari <[email protected]>

care/facility/static_data/icd11.py

@@ -3,7 +3,6 @@
 
 from django.core.paginator import Paginator
 from redis_om import Field, Migrator
-from redis_om.model.model import NotFoundError as RedisModelNotFoundError
 
 from care.facility.models.icd11_diagnosis import ICD11Diagnosis
 from care.utils.static_data.models.base import BaseRedisModel
@@ -61,7 +60,7 @@ def get_icd11_diagnosis_object_by_id(
     try:
         diagnosis = ICD11.get(diagnosis_id)
         return diagnosis.get_representation() if as_dict else diagnosis
-    except RedisModelNotFoundError:
+    except Exception:
         return None