Valid for Submission
E73.1 is a billable diagnosis code used to specify a medical diagnosis of secondary lactase deficiency. The code E73.1 is valid during the fiscal year 2021 from October 01, 2020 through September 30, 2021 for the submission of HIPAA-covered transactions.
The ICD-10-CM code E73.1 might also be used to specify conditions or terms like acquired lactase deficiency, intolerance to lactose, intolerance to lactose due to lactase deficiency in diseases other than of the small intestine or lactase deficiency.
Index to Diseases and Injuries
The Index to Diseases and Injuries is an alphabetical listing of medical terms, with each term mapped to one or more ICD-10 code(s). The following references for the code E73.1 are found in the index:
The following clinical terms are approximate synonyms or lay terms that might be used to identify the correct diagnosis code:
- Acquired lactase deficiency
- Intolerance to lactose
- Intolerance to lactose due to lactase deficiency in diseases other than of the small intestine
- Lactase deficiency
Diagnostic Related Groups - MS-DRG Mapping
Convert E73.1 to ICD-9 Code
The General Equivalency Mapping (GEM) crosswalk indicates an approximate mapping between the ICD-10 code E73.1 its ICD-9 equivalent. The approximate mapping means there is not an exact match between the ICD-10 code and the ICD-9 code and the mapped code is not a precise representation of the original code.
Information for Patients
Also called: Dairy product intolerance, Lactase deficiency, Milk intolerance
Lactose intolerance means that you cannot digest foods with lactose in them. Lactose is the sugar found in milk and foods made with milk. After eating foods with lactose in them, you may feel sick to your stomach. You may also have
- Swelling in your stomach
Your doctor may do a blood, breath or stool test to find out if your problems are due to lactose intolerance.
Lactose intolerance is not serious. Eating less food with lactose, or using pills or drops to help you digest lactose usually helps. You may need to take a calcium supplement if you don't get enough of it from your diet, since milk and foods made with milk are the most common source of calcium for most people.
NIH: National Institute of Diabetes and Digestive and Kidney Diseases
- Lactose Intolerance - NIH (National Institute of Diabetes and Digestive and Kidney Diseases)
- Lactose intolerance (Medical Encyclopedia)
[Learn More in MedlinePlus]
Lactose intolerance Lactose intolerance is an impaired ability to digest lactose, a sugar found in milk and other dairy products. Lactose is normally broken down by an enzyme called lactase, which is produced by cells in the lining of the small intestine.Congenital lactase deficiency, also called congenital alactasia, is a disorder in which infants are unable to break down lactose in breast milk or formula. This form of lactose intolerance results in severe diarrhea. If affected infants are not given a lactose-free infant formula, they may develop severe dehydration and weight loss.Lactose intolerance in adulthood is caused by reduced production of lactase after infancy (lactase nonpersistence). If individuals with lactose intolerance consume lactose-containing dairy products, they may experience abdominal pain, bloating, flatulence, nausea, and diarrhea beginning 30 minutes to 2 hours later.Most people with lactase nonpersistence retain some lactase activity and can include varying amounts of lactose in their diets without experiencing symptoms. Often, affected individuals have difficulty digesting fresh milk but can eat certain dairy products such as cheese or yogurt without discomfort. These foods are made using fermentation processes that break down much of the lactose in milk.
[Learn More in MedlinePlus]