Specifically for this code:
- diarrhea NOS (R19.7)
- functional diarrhea (K59.1)
- infectious gastroenteritis and colitis NOS (A09)
- neonatal diarrhea (noninfective) (P78.3)
- psychogenic diarrhea (F45.8)
From Section K50-K52:
- irritable bowel syndrome (K58.-)
- megacolon (K59.3-)