| Apr. | 1944 | Yamaguchi Prefectural Medical School |
|---|---|---|
| Jun. | 1947 | Yamaguchi Prefectural Medical College, Premedical Course Opened |
| Nov. | 1948 | Medical College Hospital |
| Nov. | 1957 | Number of beds in College Hospital;535 beds |
| Oct. | 1963 | Departments of Dermatology and Urology from Dermato-Urology Department |
| Jun. | 1967 | University Hospital（transferred from Yamaguchi Prefectural Medical College） Authorized to open the 14 Clinical Divisions with 750 beds in the University Hospital.
Divisions of Internal Medicine Ⅰ, Internal Medicine Ⅱ, Neuropsychiatry,
Pediatrics, Surgery Ⅰ, Surgery Ⅱ, Orthopedics Surgery, Dermatology, Central Facilities;Clinical Laboratory and Central Operation Rooms. |
| Apr. | 1968 | Division of Internal Medicine Ⅲ（15 Clinics） |
| Apr. | 1969 | Division of Anesthesiology（16 Clinics） |
| Jan. | 1970 | Number of beds in University Hospital;759 beds |
| Apr. | 1970 | Division of Blood Transfusion |
| May. | 1972 | Division of Neurosurgery（17 Clinics） |
| Apr. | 1973 | Division of Supplies |
| Jul. | 1974 | A Ward for the Infection Control closed and renamed as a Common Ward |
| Oct. | 1975 | Division of Radiology Division of Dentistry and Oral Surgery was renamed to Division of Oral and Maxillofacial Surgery |
| May. | 1976 | Division of Nursing |
| Oct. | 1976 | Division of Rehabilitation |
| Oct. | 1977 | Division of Perinatal |
| Apr. | 1980 | Administrative Office of University Hospital was re-organized General Affairs, Management and Medical Affairs Section Intensive Care Unit |
| Apr. | 1982 | Division of Critical Care and Emergency Medicine School of Nurse closed |
| Apr. | 1983 | Administrative Office was re-organized General Affairs, Management, Educational Affairs and Medical Affairs Sections |
| Apr. | 1988 | Division of Neurology（18 Clinics） |
| May. | 1989 | Division of Anesthesiology was renamed to Division of Anesthesiology-Resuscitology |
| Mar. | 1990 | Magnetic Resonance Building |
| Jun. | 1990 | Division of Total Care Unit |
| Oct. | 1990 | Critical Care Medical Center Medical Care Center for Mother and Child |
| Apr. | 1993 | Medical Care Center for Mother and Child was renamed to Perinatal Care Center |
| Jan. | 1994 | University Hospital, approved as Hospital of Special Functions |
| May. | 1996 | Department of Medical Informatics and Decision Sciences |
| Mar. | 1997 | New Central Clinical Building |
| Apr. | 1997 | Division of Surgical Pathology Division of Cardiology, Psychosomatic Medicine, Allergy, Cardiovascular Surgery and Rheumatology Classes of Elementary and Junior High School in the University Hospital |
| Apr. | 1999 | Division of Critical Care and Emergency Medicine was renamed to Advanced Medical Emergency and Critical Care Center |
| Oct. | 1999 | Return 15 beds of tuberculosis beds and regain 15 general beds Approval of the Medical Emergency and Critical Care Center |
| Mar. | 2000 | Approval of the Advanced Medical Emergency and Critical Care Center（AMEC³） Clinic for AMEC³ |
| Apr. | 2001 | Pharmaceutical Clinical Research Center |
| Apr. | 2003 | Division of Endoscopy Research Institutes was renamed to Yamaguchi University Science Research Center |
| Apr. | 2004 | National University Corporation |
| Jul. | 2004 | Nutrition Care Section was re-organized |
| Apr. | 2006 | Infection Control Office Division of Chemotherapy for outpatients |
| Sep. | 2006 | Number of beds in University Hospital;737beds |
| Oct. | 2006 | Division of Chemotherapy for outpatients |
| Jan. | 2007 | Cooperative Base Hospital for cancer diagnosis and treatment |
| Apr. | 2007 | Number of beds in University Hospital;736beds |
| Jun. | 2007 | Division of Gastroenterological Surgery, Respiratory, Chest Surgery, Pediatric Surgery |
| Sep. | 2007 | Repair of the Advanced Medical Emergency and Critical Care Center（AMEC³） |
| May. | 2008 | Division of Clinical laboratory |
| Dec. | 2008 | Accredited the Assessment system division 4（Ver.5.0） |
| Feb. | 2009 | Cooperative Base Hospital for liver diagnosis and treatment in Yamaguchi |
| Jun. | 2009 | Division of Clinical Skill-up Center |
| Oct. | 2009 | Center for Liver Disease |
| Apr. | 2010 | Therapeutic Radiology |
| Jan. | 2011 | The flight of the Helicopter Emergency Medical Service started |
| Apr. | 2011 | General Perinatal Medical Center |
| Oct. | 2011 | Career Development Center |
| Mar. | 2012 | Center of Education for Community Medicine |
| Feb. | 2013 | Radiation Oncology |
| Apr. | 2014 | Center for Clinical Research was renamed to Center for Clinical Research Secondary radiation emergency medicine Hospital Accreditation(3rd G:Ver.1.0) Diagnostic Pathology |
| Jun. | 2014 | Emergency department |
| Feb. | 2015 | Rehabilitation |
| Apr. | 2015 | Respiratory Medicine Admission and Discharge Center Division of Infection Control Management was re-organized Division of Medical Safety Management was re-organized A parking lot was completed |
| Sep. | 2015 | Center for Intractive Disorders |
| Mar. | 2016 | Palliative Care Center |
| Apr. | 2016 | Division of Surgical Pathology was renamed to Division of Surgical Pathology Center for Community Health and Medicine |
| Oct. | 2016 | Day Nursery was rebuild |
| Mar. | 2017 | Center for Community Health and Medicine was closed |
| Sep. | 2017 | Public Relations Strategy Center |
| Jan. | 2018 | Center for Clinical Education |
| Apr. | 2018 | AI systems Medicine Research and Training Center Blood Purification Therapy Service was renamed to Blood Purification Therapy Center |
| Jul. | 2018 | Division of Medical Safety Managment was renamed to Division of Medical Quality and Safety Management |
| Dec. | 2018 | Neurology was renamed to Neurology |
| Mar. | 2019 | Building A |
| Apr. | 2019 | Prastic Surgery Regional Medical Liaison Center, Patient Consultation Room and Admission and Discharge Center was integrated to Patient Support Center Quarity Indicator Center established Division of Medical Geneticsrenamed to Division of Medical Genetics and Genomics |
| Jun. | 2019 | The University Hospital new building A opened, number of Beds in University Hospital; 756 beds |
| Mar. | 2020 | The University Hospital designated as a base hospital for disaster management
Ambulance service with pediatrician (on board) for newborn babies Outpatient Department of Women’s Health closed
Accreditation by Japan Council for Quality Health Care(3rdG:Ver.2.0) |
| Apr. | 2020 | The University Hospital designated as a base hospital for allergy diseases |
Mar. | 2022 | The University Hospital designated as a base hospital for nuclear disaster |
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Apr. | 2022 | Allergy Center opened |
