K52.21
BillableFood protein-induced enterocolitis syndrome
This code does not map to an HCC category in any model (V28, V24, ESRD, RxHCC).
What This Code Means
A severe allergic reaction to food proteins that causes inflammation of the small intestine and colon, typically occurring in infants and young children and presenting with vomiting, diarrhea, and failure to thrive.
Coding Tips
- •Document the specific food protein trigger (e.g., cow's milk, soy) when known, as this may be captured in additional codes or documentation
- •This condition often requires hospitalization and careful dietary management; ensure clinical documentation supports the diagnosis before coding
Use Additional Code
- code for hypovolemic shock, if present (R57.1)
Code Hierarchy
└K52Other and unspecified noninfective gastroenteritis and colitis└K52.2Allergic and dietetic gastroenteritis and colitis└K52.21Food protein-induced enterocolitis syndrome
└K52.21Food protein-induced enterocolitis syndrome