-
DE
K90.8 – Intestinal Malabsorption ICD-10
K90.8 is an ICD-10 diagnosis code for other specified intestinal malabsorption syndromes, describing impaired nutrient absorption in the small intestine.
Add as Preferred SourceThings worth knowing about "K90.8"
K90.8 is an ICD-10 diagnosis code for other specified intestinal malabsorption syndromes, describing impaired nutrient absorption in the small intestine.
What Does ICD-10 Code K90.8 Mean?
The ICD-10 code K90.8 stands for other specified intestinal malabsorption. It belongs to the K90 group (Intestinal malabsorption) and is used when a specific form of malabsorption is present that is not covered by other more specific codes within the K90 group.
Malabsorption refers to the reduced or impaired absorption of nutrients, vitamins, minerals, or other substances from the small intestine into the body.
Causes
Various conditions can be classified under K90.8 when they lead to malabsorption but do not correspond to a more specific ICD code. Possible causes include:
- Short bowel syndrome following surgical resection (if not coded elsewhere)
- Small intestinal bacterial overgrowth (SIBO)
- Intestinal lymphangiectasia (impaired lymphatic drainage)
- Eosinophilic enteropathy
- Autoimmune enteropathy
- Bile acid malabsorption
- Rare congenital or acquired enzyme deficiencies of the small intestine
Symptoms
The symptoms of intestinal malabsorption under K90.8 vary depending on the underlying cause but may include:
- Chronic diarrhea or steatorrhea (fatty stools)
- Unintentional weight loss
- Increased bleeding tendency due to vitamin K deficiency
- Bone pain and fractures due to calcium and vitamin D deficiency
- Fatigue, weakness, and anemia due to iron or vitamin B12 deficiency
- Edema (fluid retention) due to protein deficiency
- Muscle cramps due to magnesium or calcium deficiency
Diagnosis
Diagnosis of intestinal malabsorption and assignment of the K90.8 code is based on a combination of:
- Blood tests for nutrient deficiencies (e.g., iron, vitamin B12, folate, vitamin D, albumin)
- Stool tests (e.g., fecal fat content, fecal elastase)
- Endoscopy with biopsy of the small intestine for histological examination
- Imaging studies (e.g., ultrasound, MRI enterography)
- Breath tests (e.g., H2 breath test for suspected SIBO or lactose intolerance)
Treatment
Treatment is directed at the underlying cause of malabsorption. General measures include:
- Dietary modifications: e.g., low-fat diet, small frequent meals, avoidance of trigger foods
- Supplementation of deficient nutrients: vitamins (A, D, E, K, B12), minerals (iron, calcium, magnesium), and protein
- Medical therapy: e.g., antibiotics for bacterial overgrowth, corticosteroids for inflammatory conditions
- Parenteral nutrition in severe cases where enteral intake is insufficient
- Treatment of the underlying disease according to the specific diagnosis
Clinical Relevance
The code K90.8 is used in clinical practice when intestinal malabsorption has been diagnosed and is specific enough to be designated but does not qualify for another more specific K90 subcode. Accurate coding is essential for treatment planning, billing, and epidemiological documentation.
References
- World Health Organization (WHO): ICD-10 International Statistical Classification of Diseases and Related Health Problems, 10th Revision, Volume 1, Geneva, 2019.
- Longo DL et al. (eds.): Harrison's Principles of Internal Medicine, 21st edition, McGraw-Hill, 2022 – Chapter on Malabsorption Syndromes.
- Messing B, Crenn P: Intestinal failure and short bowel syndrome. Best Practice & Research Clinical Gastroenterology, 2016.
Building Blocks for a Healthy Life
As an integrated manufacturer, we develop & produce evidence-based, patented, and non-patented formulations. We work exclusively with plant and natural extracts according to the strictest purity & quality standards.
The combination of science & modern technology with the laws of nature creates solutions consistently tailored to humans – for the highest good: health.
Skip product gallery
Subscription available
Floral
For Healthy Oral Flora & Dental Care
Formulated lozenges with Dentalac®, lactic acid bacteria, and Lactoferrin CLN®30 lozenges
Regular price:
22,90 €
Discount
Subscription available
Lactoferrin 60 Capsules
For your universal protection
As one of the most valuable proteins in the body, lactoferrin is a natural component of the immune system.
60 Capsules
Sale price:
50,00 €
Regular price:
59,90 €
Subscription available
Multivitamin Mineral Complex
Daily basic supply: the complete spectrum of micronutrients
Natural multivitamin complex for the immune system, energy, and central body functions
30 Capsules
Regular price:
29,90 €
Subscription available
Natural Iron
For your iron balance
Specially formulated for your iron balance with plant-based curry leaf iron, Lactoferrin CLN®, and natural Vitamin C from rose hips.
30 Capsules
Regular price:
35,90 €