diff --git a/Src/Dlhis.Basic/Appointment/Services/Implements/AppointmentAreaService.cs b/Src/Dlhis.Basic/Appointment/Services/Implements/AppointmentAreaService.cs
index cb71525a..07e0b386 100644
--- a/Src/Dlhis.Basic/Appointment/Services/Implements/AppointmentAreaService.cs
+++ b/Src/Dlhis.Basic/Appointment/Services/Implements/AppointmentAreaService.cs
@@ -26,6 +26,10 @@ public class AppointmentAreaService : IAppointmentAreaService
     {
         if (!request.Id.HasValue)
         {
+
+            var exists = await _dbContext.Queryable<AppointmentAreaEntity>().Where(x => x.CustomCode == request.CustomCode).AnyAsync();
+            exists.ThrowIfTrue("编码已存在");
+
             var entity = request.Adapt<AppointmentAreaEntity>();
             entity.CustomCode = request.CustomCode;
             entity.Type = request.Type;