diff --git a/src/api/types.ts b/src/api/types.ts
index a4b5414..30a890a 100644
--- a/src/api/types.ts
+++ b/src/api/types.ts
@@ -515,10 +515,12 @@ export type CustomerDetailEditResponse = CommonActionResult<OutputCustomerDetail
  * 体检加项列表信息入参（搜索体检加项）
  */
 export interface InputPhysicalExamAddItem {
+  /** 体检ID */
+  physical_exam_id: number;
   /** 折扣率 */
   discount_ratio: number;
   /** 项目名称（默认空值，传入项目名称过滤数据） */
-  item_name?: string | null;
+  item_name?: string;
 }
 
 /**
diff --git a/src/components/exam/ExamAddonPanel.tsx b/src/components/exam/ExamAddonPanel.tsx
index f7e9694..2175001 100644
--- a/src/components/exam/ExamAddonPanel.tsx
+++ b/src/components/exam/ExamAddonPanel.tsx
@@ -193,8 +193,9 @@ export const ExamAddonPanel = ({ client }: ExamAddonPanelProps) => {
       setAddonError(null);
       try {
         const res = await searchPhysicalExamAddItem({
+          physical_exam_id: Number(client.id),
           discount_ratio: discountRatio || 1,
-          item_name: debouncedAddonSearch.trim() || null,
+          item_name: debouncedAddonSearch.trim() || "",
         });
         if (res.Status === 200 && Array.isArray(res.Data)) {
           const list: AddonItem[] = res.Data.map((item) => ({