| 1/00 | Drugs for disorders of the alimentary tract or the digestive system |
| 1/02 | Drugs for disorders of the alimentary tract or the digestive system Stomatological preparations, e.g. drugs for caries, aphtae, periodontitis |
| 1/04 | Drugs for disorders of the alimentary tract or the digestive system for ulcers, gastritis or reflux esophagitis, e.g. antacids, inhibitors of acid secretion, mucosal protectants |
| 1/06 | Drugs for disorders of the alimentary tract or the digestive system Anti-spasmodics, e.g. drugs for colics, esophagic dyskinesia |
| 1/08 | Drugs for disorders of the alimentary tract or the digestive system for nausea, cinetosis or vertigo; Antiemetics |
| 1/10 | Drugs for disorders of the alimentary tract or the digestive system Laxatives |
| 1/12 | Drugs for disorders of the alimentary tract or the digestive system Antidiarrhoeals |
| 1/14 | Drugs for disorders of the alimentary tract or the digestive system Prodigestives, e.g. acids, enzymes, appetite stimulants, antidyspeptics, tonics, antiflatulents |
| 1/16 | Drugs for disorders of the alimentary tract or the digestive system for liver or gallbladder disorders, e.g. hepatoprotective agents, cholagogues, litholytics |
| 1/18 | Drugs for disorders of the alimentary tract or the digestive system for pancreatic disorders, e.g. pancreatic enzymes |
| 3/00 | Drugs for disorders of the metabolism (of the blood or the extracellular fluid A61P 7/00) |
| 3/02 | Drugs for disorders of the metabolism (of the blood or the extracellular fluid A61P 7/00) Nutrients, e.g. vitamins, minerals |
| 3/04 | Drugs for disorders of the metabolism (of the blood or the extracellular fluid A61P 7/00) Anorexiants; Antiobesity agents |
| 3/06 | Drugs for disorders of the metabolism (of the blood or the extracellular fluid A61P 7/00) Antihyperlipidemics |
| 3/08 | Drugs for disorders of the metabolism (of the blood or the extracellular fluid A61P 7/00) for glucose homeostasis (pancreatic hormones A61P 5/48) |
| 3/10 | Drugs for disorders of the metabolism (of the blood or the extracellular fluid A61P 7/00) for glucose homeostasis (pancreatic hormones A61P 5/48) for hyperglycaemia, e.g. antidiabetics |
| 3/12 | Drugs for disorders of the metabolism (of the blood or the extracellular fluid A61P 7/00) for electrolyte homeostasis |
| 3/14 | Drugs for disorders of the metabolism (of the blood or the extracellular fluid A61P 7/00) for electrolyte homeostasis for calcium homeostasis (vitamin D A61P 3/02; parathyroid hormones A61P 5/18; calcitonin A61P 5/22; osteoporosis A61P 19/1; bone metastasis A61P 35/04) |
| 5/00 | Drugs for disorders of the endocrine system |
| 5/02 | Drugs for disorders of the endocrine system of the hypothalamic hormones, e.g. TRH, GnRH, CRH, GRH, somatostatin |