E943 Agents primarily affecting gastrointestinal system causing adverse effects in therapeutic use 
E943.0 Antacids and antigastric secretion drugs causing adverse effects in therapeutic use convert E943.0 to ICD-10-CM E943.1 Irritant cathartics causing adverse effects in therapeutic use convert E943.1 to ICD-10-CM E943.2 Emollient cathartics causing adverse effects in therapeutic use convert E943.2 to ICD-10-CM E943.3 Other cathartics including intestinal atonia drugs causing adverse effects in therapeutic use convert E943.3 to ICD-10-CM E943.4 Digestants causing adverse effects in therapeutic use convert E943.4 to ICD-10-CM E943.5 Antidiarrheal drugs causing adverse effects in therapeutic use convert E943.5 to ICD-10-CM E943.6 Emetics causing adverse effects in therapeutic use convert E943.6 to ICD-10-CM E943.8 Other specified agents primarily affecting the gastro-intestinal system causing adverse effects in therapeutic use convert E943.8 to ICD-10-CM
E943.9 Unspecified agent primarily affecting the gastrointestinal system causing adverse effects in therapeutic use convert E943.9 to ICD-10-CM