• D0 Central and Peripheral Nervous System
  • D7 Lymphatic and Hematologic System
  • D8 Eye
  • D9 Ear, Nose, Mouth and Throat
  • DB Respiratory System
  • DD Gastrointestinal System
  • DF Hepatobiliary System and Pancreas
  • DG Endocrine System
  • DH Skin
  • DM Breast
  • DP Musculoskeletal System
  • DT Urinary System
  • DU Female Reproductive System
  • DV Male Reproductive System
  • DW Anatomical Regions