diff --git a/ehr/resources/web/ehr/DataEntryUtils.js b/ehr/resources/web/ehr/DataEntryUtils.js
index e218991d3..3c3fa72cb 100644
--- a/ehr/resources/web/ehr/DataEntryUtils.js
+++ b/ehr/resources/web/ehr/DataEntryUtils.js
@@ -801,7 +801,17 @@ EHR.DataEntryUtils = new function(){
                 schemaName: 'ehr',
                 queryName: 'observation_types',
                 columns: 'value,editorconfig',
-                autoLoad: true
+                autoLoad: true,
+                listeners: {
+                    // unlike EHR.data.DataEntryClientStore, LABKEY.ext4.data.Store has no hasLoaded();
+                    // consumers need to distinguish a pending initial load from one that returned no rows
+                    load: {
+                        single: true,
+                        fn: function(store){
+                            store.hasLoadedOnce = true;
+                        }
+                    }
+                }
             });
 
             return EHR._observationTypesStore;
diff --git a/ehr/resources/web/ehr/ehr_ext4_dataEntry.lib.xml b/ehr/resources/web/ehr/ehr_ext4_dataEntry.lib.xml
index 60557b71e..edaa925ac 100644
--- a/ehr/resources/web/ehr/ehr_ext4_dataEntry.lib.xml
+++ b/ehr/resources/web/ehr/ehr_ext4_dataEntry.lib.xml
@@ -21,6 +21,7 @@
         <script path="ehr/plugin/ResizableTextArea.js"/>
         <script path="ehr/plugin/RowEditor.js"/>
         <script path="ehr/plugin/CollapsibleDataEntryPanel.js"/>
+        <script path="ehr/plugin/ClinicalObservationsBulkEdit.js"/>
 
         <!--fields-->
         <script path="ehr/form/field/AnimalField.js"/>
diff --git a/ehr/resources/web/ehr/grid/ClinicalObservationGridPanel.js b/ehr/resources/web/ehr/grid/ClinicalObservationGridPanel.js
index 5ff31c467..ee28b6d05 100644
--- a/ehr/resources/web/ehr/grid/ClinicalObservationGridPanel.js
+++ b/ehr/resources/web/ehr/grid/ClinicalObservationGridPanel.js
@@ -13,6 +13,16 @@ Ext4.define('EHR.grid.ClinicalObservationGridPanel', {
     initComponent: function(){
         this.observationTypesStore = EHR.DataEntryUtils.getObservationTypesStore();
 
+        // Make the bulk edit panel for this grid offer the same category-dependent Observation/Score
+        // editor as the grid's cell editor. formConfig is threaded unchanged to EHR.panel.BulkEditPanel,
+        // which instantiates any plugins listed here.
+        if (this.formConfig){
+            this.formConfig.bulkEditPlugins = Ext4.Array.from(this.formConfig.bulkEditPlugins || []);
+            if (!Ext4.Array.contains(this.formConfig.bulkEditPlugins, 'clinicalobservationsbulkedit')){
+                this.formConfig.bulkEditPlugins.push('clinicalobservationsbulkedit');
+            }
+        }
+
         this.callParent(arguments);
     },
 
diff --git a/ehr/resources/web/ehr/panel/BulkEditPanel.js b/ehr/resources/web/ehr/panel/BulkEditPanel.js
index 6ac52fcac..ceb71473f 100644
--- a/ehr/resources/web/ehr/panel/BulkEditPanel.js
+++ b/ehr/resources/web/ehr/panel/BulkEditPanel.js
@@ -46,6 +46,20 @@ Ext4.define('EHR.panel.BulkEditPanel', {
 
         this.callParent(arguments);
 
+        // Allow a form section to contribute panel plugins to its bulk edit panel via formConfig.bulkEditPlugins.
+        // For example, the clinical observations grid uses this to make the Observation/Score editor depend on
+        // the selected Category (see EHR.plugin.ClinicalObservationsBulkEdit), keeping this panel generic. This
+        // runs after callParent because EHR.form.Panel resets this.plugins for collapsible forms. By this point
+        // the panel's own plugins have already been constructed, so we construct ours explicitly and append them;
+        // the component constructor then calls init() on every entry in this.plugins.
+        var extraPlugins = this.formConfig && this.formConfig.bulkEditPlugins;
+        if (extraPlugins){
+            this.plugins = this.plugins || [];
+            Ext4.Array.forEach(Ext4.Array.from(extraPlugins), function(p){
+                this.plugins.push(this.constructPlugin(p));
+            }, this);
+        }
+
         this.addEvents('bulkeditcomplete');
     },
 
@@ -117,27 +131,7 @@ Ext4.define('EHR.panel.BulkEditPanel', {
 
             item = Ext4.widget(item);
 
-            item.on('render', function(field){
-                if (field.labelEl){
-                    Ext4.QuickTips.register({
-                        target: field.labelEl,
-                        text: 'Click to toggle'
-                    });
-
-                    field.labelEl.on('click', function(){
-                        if (field.originalDisabled){
-                            Ext4.Msg.alert('Error', 'This field cannot be enabled');
-                            return;
-                        }
-
-                        field.setDisabled(!field.isDisabled());
-                        Ext4.defer(field.focus, 100, field);
-                    }, this);
-                }
-                else {
-                    console.log(field);
-                }
-            }, this);
+            this.addLabelToggle(item);
 
             newItems.push(item);
         }, this);
@@ -145,6 +139,30 @@ Ext4.define('EHR.panel.BulkEditPanel', {
         return newItems;
     },
 
+    addLabelToggle: function(field){
+        field.on('render', function(field){
+            if (field.labelEl){
+                Ext4.QuickTips.register({
+                    target: field.labelEl,
+                    text: 'Click to toggle'
+                });
+
+                field.labelEl.on('click', function(){
+                    if (field.originalDisabled){
+                        Ext4.Msg.alert('Error', 'This field cannot be enabled');
+                        return;
+                    }
+
+                    field.setDisabled(!field.isDisabled());
+                    Ext4.defer(field.focus, 100, field);
+                }, this);
+            }
+            else {
+                console.log(field);
+            }
+        }, this);
+    },
+
     onSubmit: function(){
         if (!this.suppressConfirmMsg){
             var values = this.getForm().getFieldValues();
diff --git a/ehr/resources/web/ehr/plugin/ClinicalObservationsBulkEdit.js b/ehr/resources/web/ehr/plugin/ClinicalObservationsBulkEdit.js
new file mode 100644
index 000000000..1f35a824f
--- /dev/null
+++ b/ehr/resources/web/ehr/plugin/ClinicalObservationsBulkEdit.js
@@ -0,0 +1,121 @@
+/*
+ * Copyright (c) 2026 LabKey Corporation
+ *
+ * Licensed under the Apache License, Version 2.0: http://www.apache.org/licenses/LICENSE-2.0
+ */
+/**
+ * A plugin for EHR.panel.BulkEditPanel that makes the Observation/Score field's editor depend on the
+ * selected Category, mirroring EHR.grid.plugin.ClinicalObservationsCellEditing so that the data type
+ * and options offered in the bulk edit dialog match the clinical observations grid.
+ *
+ * It is attached to the bulk edit panel via the clinical observations grid's formConfig.bulkEditPlugins
+ * (see EHR.grid.ClinicalObservationGridPanel), so the generic bulk edit panel stays free of any
+ * observation-specific logic.
+ */
+Ext4.define('EHR.plugin.ClinicalObservationsBulkEdit', {
+    extend: 'Ext.AbstractPlugin',
+    alias: 'plugin.clinicalobservationsbulkedit',
+
+    init: function(panel){
+        this.panel = panel;
+        this.observationTypesStore = EHR.DataEntryUtils.getObservationTypesStore();
+        panel.on('afterrender', this.setupObservationDependency, this, {single: true});
+
+        this.callParent(arguments);
+    },
+
+    setupObservationDependency: function(){
+        var panel = this.panel;
+        var categoryField = panel.down('[name=category]');
+        var observationField = panel.down('[name=observation]');
+        if (!categoryField || !observationField){
+            return;
+        }
+
+        // Capture the base config of the original Observation/Score field so it can be rebuilt with a
+        // category-specific editor (see reconfigureObservationField).
+        this.observationFieldBaseCfg = {
+            name: observationField.name,
+            fieldLabel: observationField.fieldLabel,
+            labelWidth: observationField.labelWidth,
+            width: observationField.width,
+            // honor metadata that marks the field as never-enableable (see BulkEditPanel.getFieldConfigs)
+            originalDisabled: observationField.originalDisabled
+        };
+
+        categoryField.on('change', function(field, newValue){
+            this.reconfigureObservationField(newValue);
+        }, this);
+
+        // Initialize based on any pre-populated category value (e.g. when all selected records share a category)
+        var initialCategory = categoryField.getValue();
+        if (initialCategory){
+            this.reconfigureObservationField(initialCategory);
+        }
+    },
+
+    reconfigureObservationField: function(category){
+        var store = this.observationTypesStore;
+        // hasLoadedOnce (set in EHR.DataEntryUtils.getObservationTypesStore) distinguishes a pending
+        // initial load from one that already returned no rows; for the latter we fall through to the
+        // textfield default rather than waiting on a load event that will never fire
+        if (!store.hasLoadedOnce){
+            store.on('load', function(){
+                // the dialog may have been closed before the store finished loading
+                if (this.panel && !this.panel.isDestroyed){
+                    this.reconfigureObservationField(category);
+                }
+            }, this, {single: true});
+            return;
+        }
+
+        var panel = this.panel;
+        var observationField = panel.down('[name=observation]');
+        if (!observationField){
+            return;
+        }
+
+        //note: we proceed even if the category cannot be found, to support records saved under a no-longer-supported category
+        var rec = category ? store.findRecord('value', category) : null;
+        var rawEditorConfig = (rec && rec.get('editorconfig')) || null;
+
+        // the category combo fires change on every keystroke, so skip the rebuild when the resolved
+        // editor is unchanged; this avoids churn and preserves any value the user already entered
+        if (this.appliedEditorConfig !== undefined && this.appliedEditorConfig === rawEditorConfig){
+            return;
+        }
+
+        var container = observationField.ownerCt;
+        var index = container.items.indexOf(observationField);
+        //preserve the user's enable/disable toggle state across category changes
+        var wasDisabled = observationField.isDisabled();
+
+        var editorConfig = rawEditorConfig ? Ext4.decode(rawEditorConfig) : null;
+        editorConfig = editorConfig || {
+            xtype: 'textfield'
+        };
+
+        var cfg = Ext4.apply({}, editorConfig);
+        Ext4.apply(cfg, this.observationFieldBaseCfg);
+        delete cfg.value;
+        delete cfg.defaultValue;
+        cfg.allowBlank = true;
+        cfg.disabled = wasDisabled;
+
+        cfg = EHR.DataEntryUtils.ensureLookupPlugin(cfg, false);
+
+        container.remove(observationField, true);
+        var newField = Ext4.widget(cfg);
+        panel.addLabelToggle(newField);
+        container.insert(index, newField);
+
+        // the databind plugin only registers listeners on the fields present at init, so register the
+        // replacement explicitly to keep record syncing and validation consistent with the original field
+        var databind = panel.getPlugin('ehr-databind');
+        if (databind){
+            databind.addFieldListener(newField);
+        }
+
+        this.appliedEditorConfig = rawEditorConfig;
+    }
+});