Y40-Y59: Drugs, medicaments and biological substances causing adverse effects in therapeutic use

Y53: Agents primarily affecting the gastrointestinal system

The group of conditions related to agents primarily affecting the gastrointestinal system represents a broad spectrum of ailments that impact the digestive tract. These conditions involve the body's response to certain substances, which may comprise of medications, toxins, or pathogens directly influencing the digestive system. The transmission can occur through ingestion of contaminated food, water, or drugs. Common symptoms vary widely, but can include nausea, vomiting, diarrhea, abdominal pain, and changes in appetite. Some conditions may progress quickly, causing severe symptoms and complications, while others might develop gradually, causing persistent but less severe issues. Systems affected by these conditions are primarily the gastrointestinal tract, including the stomach, intestines, liver, and related organs, but secondary effects on other body systems due to disruptions in nutrient absorption and fluid balance are also common.