Step 2. Diagnosis:

Select a Major Diagnosis from Component B - Bowel/Gastric

B.??.?.?

B refers to: Bowel/Gastric which may be described as: Cluster of elements that involve the gastrointestinal system.

Possible Sub-Diagnoses

Component Code Concept Definition
B 03.0 Bowel Elimination Alteration Change in or modification of the gastrointestinal system
B 04.0 Gastrointestinal Alteration Change in or modification of the stomach or intestines