Celiac disease

This code identifies an autoimmune disorder characterized by an inflammatory response in the small intestine to gluten ingestion. This reaction leads to damage of the villi, impairing nutrient absorption and resulting in various systemic manifestations.

Apply this code for patients with a confirmed diagnosis of celiac disease, often supported by positive serological tests (e.g., anti-tissue transglutaminase antibodies) and small bowel biopsy showing characteristic villous atrophy. It is appropriate for both newly diagnosed cases and ongoing management of the condition.

• Do not confuse with gluten sensitivity or wheat allergy, which are distinct conditions.
• Always review documentation for definitive diagnostic criteria, not just symptoms.
• Consider sequencing with malnutrition codes if documented as a complication of celiac disease.