diff --git a/platform-biz-service/src/main/java/com/lyms/platform/permission/service/impl/CouponServiceImpl.java b/platform-biz-service/src/main/java/com/lyms/platform/permission/service/impl/CouponServiceImpl.java
index 7703bdb..9a3bd74 100644
--- a/platform-biz-service/src/main/java/com/lyms/platform/permission/service/impl/CouponServiceImpl.java
+++ b/platform-biz-service/src/main/java/com/lyms/platform/permission/service/impl/CouponServiceImpl.java
@@ -443,11 +443,13 @@ public class CouponServiceImpl implements CouponService {
 
     @Override
     public Map<String, Object> getPatientsInfoByCode(String code) {
-        Map<String, Object> param = new HashMap<>();
-        param.put("code", code);
-        List<CouponInfo> list = couponMapper.findList(param);
-        if(CollectionUtils.isNotEmpty(list)) {
-            return getPatientsInfo(list.get(0).getUserId());
+        if(org.apache.commons.lang.StringUtils.isNotEmpty(code)){
+            Map<String, Object> param = new HashMap<>();
+            param.put("code", code);
+            List<CouponInfo> list = couponMapper.findList(param);
+            if(CollectionUtils.isNotEmpty(list)) {
+                return getPatientsInfo(list.get(0).getUserId());
+            }
         }
         return null;
     }