Lactose intolerance
Chapter 4:Endocrine, nutritional and metabolic diseases
ICD-10 E73 is a billable code used to indicate a diagnosis of lactose intolerance.
Lactose intolerance is a common metabolic disorder characterized by the inability to properly digest lactose, a sugar found in milk and dairy products. This condition arises from a deficiency of lactase, an enzyme produced in the small intestine that is responsible for breaking down lactose into glucose and galactose for absorption. Individuals with lactose intolerance may experience symptoms such as abdominal pain, bloating, diarrhea, and gas after consuming lactose-containing foods. The severity of symptoms can vary based on the amount of lactose ingested and the degree of lactase deficiency. Lactose intolerance can be classified into three types: primary, secondary, and congenital. Primary lactose intolerance is the most common form, typically developing in adulthood as lactase production decreases. Secondary lactose intolerance can occur due to injury to the small intestine from infections, diseases, or surgeries. Congenital lactose intolerance is a rare genetic condition where infants are born with little to no lactase enzyme. Diagnosis is often made through clinical evaluation and tests such as the hydrogen breath test or lactose tolerance test. Management primarily involves dietary modifications to limit lactose intake and may include lactase enzyme supplements.
Detailed patient history, symptom diary, and results of diagnostic tests.
Patients presenting with gastrointestinal symptoms after dairy consumption.
Ensure documentation includes the type of lactose intolerance and any dietary modifications recommended.
Growth charts, dietary history, and parental reports of symptoms.
Infants or children with gastrointestinal distress after milk intake.
Document any congenital conditions and family history of lactose intolerance.
Used to confirm lactose intolerance diagnosis.
Document the test results and patient symptoms.
Gastroenterologists should ensure proper interpretation of test results.
Common symptoms include bloating, diarrhea, gas, and abdominal pain after consuming lactose-containing foods.
Diagnosis is typically made through patient history, dietary assessments, and tests such as the hydrogen breath test or lactose tolerance test.
Management primarily involves dietary modifications to limit lactose intake and may include lactase enzyme supplements to aid digestion.
