diff --git a/CHANGELOG.md b/CHANGELOG.md
index ece3bdd..7339bfe 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -191,3 +191,5 @@
 ## 0.5.0
 - integrated oa-configurator package configuration and adapted omop-constructs to current orm-loader / omop-alchemy compatibility changes
 
+## 0.5.2
+- ecog_dx_mv now also carries value_as_concept_id: ECOG performance status is a precoordinated-concept answer (OHDSI convention), not a plain number, so downstream measure logic needs the concept alongside (or instead of) value_as_number
diff --git a/pyproject.toml b/pyproject.toml
index 67ca320..6ae19b5 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [project]
 name = "omop-constructs"
-version = "0.5.1"
+version = "0.5.2"
 description = "For building complex constructs on top of the omop-alchemy library."
 readme = "README.md"
 authors = [
diff --git a/src/omop_constructs/alchemy/events/dx_linked_event_mv.py b/src/omop_constructs/alchemy/events/dx_linked_event_mv.py
index 3a85e84..13c7938 100644
--- a/src/omop_constructs/alchemy/events/dx_linked_event_mv.py
+++ b/src/omop_constructs/alchemy/events/dx_linked_event_mv.py
@@ -157,6 +157,7 @@ class ECOGDxMV(
     __mv_index__ = "person_id"
     __deps__ = (ConditionEpisodeMV.__mv_name__,)
     __tablename__ = __mv_name__
+    value_as_concept_id: so.Mapped[Optional[int]] = so.mapped_column(sa.Integer, nullable=True)
 
 @register_construct
 class SmokingPYHDxMV(
diff --git a/src/omop_constructs/alchemy/events/event_queries.py b/src/omop_constructs/alchemy/events/event_queries.py
index 7bf3a6f..218dd3d 100644
--- a/src/omop_constructs/alchemy/events/event_queries.py
+++ b/src/omop_constructs/alchemy/events/event_queries.py
@@ -52,7 +52,7 @@
 
 ecog_query = measurement_attached_to_condition_episode(
     concept_ids=[runtime.measurements_numeric.performance_status_measurements.ecog_performance_status],  # type: ignore
-    include_cols=[Measurement.value_as_number, Measurement.unit_concept_id],
+    include_cols=[Measurement.value_as_number, Measurement.value_as_concept_id, Measurement.unit_concept_id],
     name="ecog",
 )
 
diff --git a/tests/artifacts/construct_registry_schema.csv b/tests/artifacts/construct_registry_schema.csv
index 874f999..bc7defb 100644
--- a/tests/artifacts/construct_registry_schema.csv
+++ b/tests/artifacts/construct_registry_schema.csv
@@ -185,20 +185,21 @@ dx_visit_mv,omop_constructs.alchemy.events.dx_linked_visit_mv,DxRelevantVisitMV,
 dx_visit_mv,omop_constructs.alchemy.events.dx_linked_visit_mv,DxRelevantVisitMV,materialized_view,,person_id,,11,episode_prior,INTEGER,false,false
 dx_visit_mv,omop_constructs.alchemy.events.dx_linked_visit_mv,DxRelevantVisitMV,materialized_view,,person_id,,12,diff_days,FLOAT,false,false
 dx_visit_mv,omop_constructs.alchemy.events.dx_linked_visit_mv,DxRelevantVisitMV,materialized_view,,person_id,,13,rank,INTEGER,false,false
-ecog_dx_mv,omop_constructs.alchemy.events.dx_linked_event_mv,ECOGDxMV,materialized_view,condition_episode_mv,person_id,,1,mv_id,INTEGER,false,true
-ecog_dx_mv,omop_constructs.alchemy.events.dx_linked_event_mv,ECOGDxMV,materialized_view,condition_episode_mv,person_id,,2,person_id,INTEGER,false,false
-ecog_dx_mv,omop_constructs.alchemy.events.dx_linked_event_mv,ECOGDxMV,materialized_view,condition_episode_mv,person_id,,3,event_id,INTEGER,false,false
-ecog_dx_mv,omop_constructs.alchemy.events.dx_linked_event_mv,ECOGDxMV,materialized_view,condition_episode_mv,person_id,,4,event_date,DATE,false,false
-ecog_dx_mv,omop_constructs.alchemy.events.dx_linked_event_mv,ECOGDxMV,materialized_view,condition_episode_mv,person_id,,5,event_concept_id,INTEGER,false,false
-ecog_dx_mv,omop_constructs.alchemy.events.dx_linked_event_mv,ECOGDxMV,materialized_view,condition_episode_mv,person_id,,6,event_label,VARCHAR,true,false
-ecog_dx_mv,omop_constructs.alchemy.events.dx_linked_event_mv,ECOGDxMV,materialized_view,condition_episode_mv,person_id,,7,value_as_number,FLOAT,true,false
-ecog_dx_mv,omop_constructs.alchemy.events.dx_linked_event_mv,ECOGDxMV,materialized_view,condition_episode_mv,person_id,,8,unit_concept_id,INTEGER,true,false
-ecog_dx_mv,omop_constructs.alchemy.events.dx_linked_event_mv,ECOGDxMV,materialized_view,condition_episode_mv,person_id,,9,episode_id,INTEGER,true,false
-ecog_dx_mv,omop_constructs.alchemy.events.dx_linked_event_mv,ECOGDxMV,materialized_view,condition_episode_mv,person_id,,10,episode_concept_id,INTEGER,true,false
-ecog_dx_mv,omop_constructs.alchemy.events.dx_linked_event_mv,ECOGDxMV,materialized_view,condition_episode_mv,person_id,,11,episode_label,VARCHAR,true,false
-ecog_dx_mv,omop_constructs.alchemy.events.dx_linked_event_mv,ECOGDxMV,materialized_view,condition_episode_mv,person_id,,12,episode_start_date,DATE,true,false
-ecog_dx_mv,omop_constructs.alchemy.events.dx_linked_event_mv,ECOGDxMV,materialized_view,condition_episode_mv,person_id,,13,episode_end_date,DATE,true,false
-ecog_dx_mv,omop_constructs.alchemy.events.dx_linked_event_mv,ECOGDxMV,materialized_view,condition_episode_mv,person_id,,14,episode_delta_days,INTEGER,true,false
+ecog_dx_mv,omop_constructs.alchemy.events.dx_linked_event_mv,ECOGDxMV,materialized_view,condition_episode_mv,person_id,,1,value_as_concept_id,INTEGER,true,false
+ecog_dx_mv,omop_constructs.alchemy.events.dx_linked_event_mv,ECOGDxMV,materialized_view,condition_episode_mv,person_id,,2,mv_id,INTEGER,false,true
+ecog_dx_mv,omop_constructs.alchemy.events.dx_linked_event_mv,ECOGDxMV,materialized_view,condition_episode_mv,person_id,,3,person_id,INTEGER,false,false
+ecog_dx_mv,omop_constructs.alchemy.events.dx_linked_event_mv,ECOGDxMV,materialized_view,condition_episode_mv,person_id,,4,event_id,INTEGER,false,false
+ecog_dx_mv,omop_constructs.alchemy.events.dx_linked_event_mv,ECOGDxMV,materialized_view,condition_episode_mv,person_id,,5,event_date,DATE,false,false
+ecog_dx_mv,omop_constructs.alchemy.events.dx_linked_event_mv,ECOGDxMV,materialized_view,condition_episode_mv,person_id,,6,event_concept_id,INTEGER,false,false
+ecog_dx_mv,omop_constructs.alchemy.events.dx_linked_event_mv,ECOGDxMV,materialized_view,condition_episode_mv,person_id,,7,event_label,VARCHAR,true,false
+ecog_dx_mv,omop_constructs.alchemy.events.dx_linked_event_mv,ECOGDxMV,materialized_view,condition_episode_mv,person_id,,8,value_as_number,FLOAT,true,false
+ecog_dx_mv,omop_constructs.alchemy.events.dx_linked_event_mv,ECOGDxMV,materialized_view,condition_episode_mv,person_id,,9,unit_concept_id,INTEGER,true,false
+ecog_dx_mv,omop_constructs.alchemy.events.dx_linked_event_mv,ECOGDxMV,materialized_view,condition_episode_mv,person_id,,10,episode_id,INTEGER,true,false
+ecog_dx_mv,omop_constructs.alchemy.events.dx_linked_event_mv,ECOGDxMV,materialized_view,condition_episode_mv,person_id,,11,episode_concept_id,INTEGER,true,false
+ecog_dx_mv,omop_constructs.alchemy.events.dx_linked_event_mv,ECOGDxMV,materialized_view,condition_episode_mv,person_id,,12,episode_label,VARCHAR,true,false
+ecog_dx_mv,omop_constructs.alchemy.events.dx_linked_event_mv,ECOGDxMV,materialized_view,condition_episode_mv,person_id,,13,episode_start_date,DATE,true,false
+ecog_dx_mv,omop_constructs.alchemy.events.dx_linked_event_mv,ECOGDxMV,materialized_view,condition_episode_mv,person_id,,14,episode_end_date,DATE,true,false
+ecog_dx_mv,omop_constructs.alchemy.events.dx_linked_event_mv,ECOGDxMV,materialized_view,condition_episode_mv,person_id,,15,episode_delta_days,INTEGER,true,false
 egfr_dx_mv,omop_constructs.alchemy.events.dx_linked_event_mv,EGFRDxMV,materialized_view,condition_episode_mv,person_id,,1,mv_id,INTEGER,false,true
 egfr_dx_mv,omop_constructs.alchemy.events.dx_linked_event_mv,EGFRDxMV,materialized_view,condition_episode_mv,person_id,,2,person_id,INTEGER,false,false
 egfr_dx_mv,omop_constructs.alchemy.events.dx_linked_event_mv,EGFRDxMV,materialized_view,condition_episode_mv,person_id,,3,event_id,INTEGER,false,false