Main diagnostic group
Hauptdiagnosegruppe - Major Diagnostic Category (MDC) - describes the chapter division of the German DRG catalog. The main diagnostic groups divide the DRGs according to the organ system or the cause of the disease.
There are a total of 23 main diagnosis groups as well as special cases and error DRGs. In most cases, the assignment to an MDC is based on the ICD-10 coded diagnoses.
Main diagnosis group table:
- Pre MDC special cases ( ventilation cases , transplants, etc.)
 - MDC 01 Diseases and disorders of the nervous system
 - MDC 02 Diseases and Disorders of the Eye
 - MDC 03 Diseases and disorders of the ear, nose, mouth and throat ( ENT )
 - MDC 04 Diseases and disorders of the respiratory system
 - MDC 05 Diseases and disorders of the circulatory system
 - MDC 06 Diseases and disorders of the digestive organs
 - MDC 07 Diseases and disorders of the hepatobiliary system and pancreas
 - MDC 08 illnesses and disorders of muscle - skeletal system and connective tissue
 - MDC 09 Diseases and disorders of the skin , subcutaneous tissue and breast
 - MDC 10 Endocrine , Nutritional and Metabolic Diseases
 - MDC 11 Diseases and Disorders of the Urinary Organs
 - MDC 12 Diseases and Disorders of the Male Reproductive System
 - MDC 13 Diseases and Disorders of the Female Reproductive Organs
 - MDC 14 pregnancy , childbirth and the puerperium
 - MDC 15 newborns
 - MDC 16 diseases of the blood , the blood-forming organs and the immune system
 - MDC 17 Hematologic and solid neoplasms
 - MDC 18A HIV
 - MDC 18B Infectious and Parasitic Diseases
 - MDC 19 Mental Illnesses
 - MDC 20 Alcohol and Drug Use and Alcohol and Drug Induced Mental Disorders
 - MDC 21A polytrauma
 - MDC 21B Injury , Poisoning, and Toxic Effects of Drugs and Medicines
 - MDC 22 burns
 - MDC 23 Factors Affecting Health Status and Other Health Care Use
 - MDC 24 Other DRG
 - Error DRG