Fujitsu Japan Uses GenAI to Cut Discharge Summary Time

At Nagoya Medical Center, the deployment of generative AI for the creation of discharge summaries has been led by Fujitsu Japan. Complete operations commenced on October 31, 2025. The AI produces medical documents from digital medical records. Doctors at the hospital say it cuts the time to prepare a summary from 28 minutes to 8 minutes per patient. That is a reduction of more than 70 percent.

Discharge summaries are used to share patient information with other hospitals and care facilities. They have to include the patient’s condition, treatment progress, and details of care within two weeks of discharge. Nagoya Medical Center makes around 16,000 summaries a year. The doctors have faced a huge workload in this situation. The assistance of the AI leads to the reduction of that workload and hence, more time available for doctors to be with the patients.

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The system works on a closed network. Patient data is not used to train the AI and it is not stored on the cloud. Departments can select which medical information to include in summaries. The AI also supports HL7 FHIR standards for sharing medical data. Fujitsu Japan plans to expand AI use to other medical operations. The goal is to make hospitals more digital and efficient and to support a sustainable healthcare system.