Secondary lactase deficiency
ICD-10 E73.1 is a billable code used to indicate a diagnosis of secondary lactase deficiency.
Secondary lactase deficiency is a condition characterized by a reduced ability to digest lactose, the sugar found in milk and dairy products, due to an underlying condition that affects the intestinal mucosa. Unlike primary lactase deficiency, which is genetically determined and typically develops in childhood or adolescence, secondary lactase deficiency arises as a result of other medical conditions such as gastrointestinal infections, inflammatory bowel disease (IBD), celiac disease, or other disorders that damage the intestinal lining. This damage leads to a decrease in lactase enzyme production, resulting in symptoms such as bloating, diarrhea, and abdominal pain upon lactose ingestion. Diagnosis is often made through clinical history, dietary assessment, and sometimes hydrogen breath tests. Management involves dietary modifications to limit lactose intake and addressing the underlying condition causing the deficiency. Understanding the etiology of secondary lactase deficiency is crucial for effective treatment and patient education.
Detailed patient history, including gastrointestinal symptoms and dietary habits.
Patients presenting with abdominal pain, bloating, and diarrhea after dairy consumption.
Ensure documentation includes any diagnostic tests performed and the results of those tests.
Growth charts and developmental assessments to monitor the impact of dietary changes.
Children with recurrent abdominal pain and suspected lactose intolerance.
Consideration of dietary intake and nutritional status in children.
Used to confirm lactose intolerance in patients suspected of having secondary lactase deficiency.
Document the indication for the test and the results.
Gastroenterologists should ensure that the test is performed in a controlled setting.
Primary lactase deficiency is a genetic condition where lactase production decreases with age, while secondary lactase deficiency occurs due to damage to the intestinal lining from other medical conditions.
