diff --git a/src/api/his.ts b/src/api/his.ts
index 14408d4..89ffc47 100644
--- a/src/api/his.ts
+++ b/src/api/his.ts
@@ -22,6 +22,8 @@ import type {
   DaojiandanGetResponse,
   InputDaojiandanSignSubmit,
   DaojiandanSignSubmitResponse,
+  InputAddItemBillInfo,
+  AddItemBillGetResponse,
   InputAddItemBillSignSubmit,
   AddItemBillSignSubmitResponse,
   InputDaojiandanPrintStatus,
@@ -306,6 +308,18 @@ export const submitDaojiandanSign = (
   ).then(res => res.data);
 };
 
+/**
+ * 获取体检加项单PDF
+ */
+export const getAddItemBillPdf = (
+  data: InputAddItemBillInfo
+): Promise<AddItemBillGetResponse> => {
+  return request.post<AddItemBillGetResponse>(
+    `${MEDICAL_EXAM_BASE_PATH}/add-item-bill-get`,
+    data
+  ).then(res => res.data);
+};
+
 /**
  * 提交体检加项单签名生成PDF
  */
diff --git a/src/api/types.ts b/src/api/types.ts
index 7cb852b..441e44a 100644
--- a/src/api/types.ts
+++ b/src/api/types.ts
@@ -400,6 +400,31 @@ export interface OutputDaojiandanSignInfo {
  */
 export type DaojiandanSignSubmitResponse = CommonActionResult<OutputDaojiandanSignInfo>;
 
+/**
+ * 获取体检加项单PDF入参
+ */
+export interface InputAddItemBillInfo {
+  /** 体检ID */
+  exam_id: number;
+}
+
+/**
+ * 获取体检加项单PDF出参
+ */
+export interface OutputAddItemBillInfo {
+  /** 加项单文件名称 */
+  pdf_name?: string | null;
+  /** PDF文件地址 */
+  pdf_url?: string | null;
+  /** 消息内容 */
+  message?: string | null;
+}
+
+/**
+ * 获取体检加项单PDF响应
+ */
+export type AddItemBillGetResponse = CommonActionResult<OutputAddItemBillInfo>;
+
 /**
  * 提交体检加项单签名入参
  */