1. What Kind of Information is included in MDV Database?
MDV database contains medical treatment, disease, and partial blood test result information allowing different analyses by pharmaceutical companies, medical device manufacturers, academia, research institutions, and health insurance companies.
For surgery or any medical treatment other than medication, it is important to note that the categories and code system used in Japan is unique. For example, surgeries are all referred as “K code” category. These codes can be used to pinpoint number of patients as well as volume of surgeries.
2. Surgery Trend Ranking in MDV Data (January 2022 – December 2022)
MDV Database contains more than 45 million patient data from over 480 hospitals in Japan:
| No | Health Claim Number Code | Health Claim Number Name | Number of Patients |
| 1 | K000 | Wound processing | 326,957 |
| 2 | K920-2 | Blood transfusion management fee | 192,259 |
| 3 | K920 | Transfusion | 183,058 |
| 4 | K721 | Endoscopic large intestine polypectomy / membrane resection | 182,213 |
| 5 | K931 | Ultrasound coagulation incision apparatus and others add-on fee | 142,880 |
| 6 | K282 | Lens reconstruction surgery | 87,221 |
| 7 | K936 | Autosuture device add-on fee | 71,998 |
| 8 | K046 | Invasive fracture surgery | 55,376 |
| 9 | K005 | Skin, subdermal tumor extirpation (exposed part) | 34,530 |
| 10 | K549 | Percutaneous coronary artery stenting | 34,347 |
| 11 | K939 | Surgery support by images or others add-on fee | 27,938 |
| 12 | K082 | Artificial joint replacement | 27,729 |
| 13 | K142 | Spinal fusion, laminectomy, laminoplasty (including multiple intervertebral or multiple vertebral arch surgery) | 26,662 |
| 14 | K672-2 | Laparoscopic cholecystectomy | 26,431 |
| 15 | K688 | Endoscopic biliary stenting | 25,589 |
| 16 | K595 | Percutaneous catheter ablation | 25,508 |
| 17 | K001 | Skin incision | 25,131 |
| 18 | K006 | Skin, subdermal tumor extirpation (except exposed part) | 25,059 |
| 19 | K476 | Malignant breast tumor surgery | 23,034 |
| 20 | K898 | Caesarean delivery | 22,409 |
Various surgeries for different diseases can be observed as MDV database consist of hospitals that have capabilities to treat both acute and chronic diseases. Blood test results can be combined in the survey to support a more comprehensive analysis.
