diff --git a/openhis-application/src/main/java/com/openhis/application/service/impl/DiagnosisServiceImpl.java b/openhis-application/src/main/java/com/openhis/application/service/impl/DiagnosisServiceImpl.java
new file mode 100644
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+++ b/openhis-application/src/main/java/com/openhis/application/service/impl/DiagnosisServiceImpl.java
@@ -0,0 +1,91 @@
+package com.openhis.application.service.impl;
+
+import com.openhis.application.domain.dto.DiagnosisDto;
+import com.openhis.application.domain.entity.Diagnosis;
+import com.openhis.application.exception.BusinessException;
+import com.openhis.application.mapper.DiagnosisMapper;
+import com.openhis.application.mapper.DiseaseReportTypeMapper;
+import com.openhis.application.service.DiagnosisService;
+import com.openhis.application.service.InfectionReportService;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Service;
+import org.springframework.transaction.annotation.Transactional;
+import org.springframework.util.CollectionUtils;
+
+import java.util.List;
+
+/**
+ * 诊断业务实现
+ *
+ * 修复 Bug #573：确诊配置了“报卡类型”的疾病后，保存诊断未自动触发传染病报卡弹窗。
+ * 解决方案：
+ *   1. 保存诊断后查询该疾病是否在 disease_report_type 表中配置了报卡类型；
+ *   2. 若配置了报卡类型，调用 InfectionReportService.triggerReportPopup 触发前端弹窗。
+ */
+@Service
+public class DiagnosisServiceImpl implements DiagnosisService {
+
+    private static final Logger logger = LoggerFactory.getLogger(DiagnosisServiceImpl.class);
+
+    @Autowired
+    private DiagnosisMapper diagnosisMapper;
+
+    @Autowired
+    private DiseaseReportTypeMapper diseaseReportTypeMapper;
+
+    @Autowired
+    private InfectionReportService infectionReportService;
+
+    /**
+     * 保存诊断（包括主诊断和其他诊断）。
+     *
+     * @param diagnosisDto 诊断信息
+     * @throws BusinessException 业务异常
+     */
+    @Override
+    @Transactional(rollbackFor = Exception.class)
+    public void saveDiagnosis(DiagnosisDto diagnosisDto) throws BusinessException {
+        // 1. 参数校验
+        if (diagnosisDto == null || diagnosisDto.getPatientId() == null) {
+            throw new BusinessException("诊断信息不完整");
+        }
+
+        // 2. 删除原有诊断（如果是编辑场景）
+        diagnosisMapper.deleteByVisitId(diagnosisDto.getVisitId());
+
+        // 3. 批量插入新的诊断记录
+        List<Diagnosis> entities = diagnosisDto.toEntityList();
+        if (!CollectionUtils.isEmpty(entities)) {
+            diagnosisMapper.batchInsert(entities);
+        }
+
+        // --------------------------------------------------------------
+        // 4. 新增：检查是否需要弹出传染病报卡弹窗
+        // --------------------------------------------------------------
+        try {
+            // 只要有一条诊断对应的疾病配置了报卡类型，即触发弹窗
+            boolean needReport = entities.stream().anyMatch(d -> {
+                // disease_report_type 表结构假设为 (disease_id, report_type)
+                // report_type 为非空即表示需要报卡
+                return diseaseReportTypeMapper.selectReportTypeByDiseaseId(d.getDiseaseId()) != null;
+            });
+
+            if (needReport) {
+                // 触发报卡弹窗，传递必要的上下文（患者ID、就诊ID、诊断列表等）
+                infectionReportService.triggerReportPopup(diagnosisDto.getPatientId(),
+                                                          diagnosisDto.getVisitId(),
+                                                          entities);
+                logger.info("诊断保存后触发传染病报卡弹窗，patientId={}, visitId={}", diagnosisDto.getPatientId(),
+                            diagnosisDto.getVisitId());
+            }
+        } catch (Exception ex) {
+            // 业务不应因弹窗触发失败而回滚诊断保存，记录日志即可
+            logger.error("诊断保存后检查报卡类型或触发弹窗异常，patientId={}, visitId={}",
+                         diagnosisDto.getPatientId(), diagnosisDto.getVisitId(), ex);
+        }
+    }
+
+    // 其它诊断相关业务方法保持不变...
+}