R10-R19: Symptoms and signs involving the digestive system and abdomen

The group of conditions classified as symptoms and signs involving the digestive system and abdomen largely encompass a variety of ailments tied to the gastrointestinal tract and abdominal region. They range from abdominal and pelvic pain, liver conditions, hypersalivation, and difficulty in swallowing, to quantifiable changes such as abnormal weight loss or gain. Transmission of these symptoms are not necessarily contagious, as they can be a result of individual dietary habits, genetic factors, or underlying health conditions. Common symptoms include persistent discomfort in the abdomen, changes in appetite, drastic changes in weight, excessive salivation, and swallowing difficulties. Disease progression varies, as these symptoms can signal both minor and severe underlying conditions – from gastritis to liver diseases – and can either resolve independently or worsen if left unattended. Generally, these ailments affect gastrointestinal functions, with possible impacts on nutritional absorption and metabolism.