ICD-10 Code K90.83 – Intestinal failure (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code K90.83 – Intestinal failure
What it is
Intestinal failure means the bowel cannot absorb enough nutrients, fluids, or electrolytes to maintain health without specialized support. It usually reflects severe loss of intestinal function, not simply temporary digestive upset.
Clinical signs
Clinical features vary; refer to documentation. Common findings may include malnutrition, dehydration, weight loss, and dependence on enteral or parenteral nutrition when the intestine cannot meet nutritional needs.
When to use this code
Use K90.83 when the provider documents intestinal failure, short bowel-related failure of absorption, or inability to sustain nutrition because of inadequate intestinal function. Code it when the diagnosis is established, not just suspected. Check documentation for whether the condition is acute, chronic, or associated with another disorder.
Do not use for
Do not use this code for routine diarrhea, nonspecific malabsorption, or mild feeding intolerance without documented intestinal failure. If the chart only says poor intake or weight loss, verify the diagnosis first.
Coding tip
Assign K90.83 only when the record clearly states intestinal failure or equivalent wording that shows loss of absorptive function.