K52.22
BillableFood protein-induced enteropathy
This code does not map to an HCC category in any model (V28, V24, ESRD, RxHCC).
What This Code Means
An allergic reaction to food proteins that causes inflammation and damage to the small intestine lining, leading to malabsorption and nutritional deficiencies without the severe systemic symptoms seen in FPIES.
Coding Tips
- •Distinguish from K52.21 (FPIES) by noting the absence of systemic symptoms like shock or severe vomiting
- •Document the offending food protein when identified, as dietary elimination is the primary treatment