Summary of modified CMUI scoring system (high risk of failed non-operative management when score >9 points)
| Items | Score (points) |
| Body weight <9 kg | 0 or 1 |
| Prolonged duration of symptoms (>48 hours) | 0 or 1 |
| Vomiting | 0 or 2 |
| Rectal bleeding | 0 or 2 |
| Abdominal distension | 0 or 2 |
| Fever (body temperature >37.8°C) | 0 or 2 |
| Palpable mass of intussusceptum | 0 or 1 |
| Left-sided location of the intussusceptum | 0 or 2 |
| Unfavorable ultrasound signs (colonic wall thickening, trapped fluid between bowel loops, ascites, signs of small bowel obstruction and absence of color flow) | 0 or 2 |
| Hyponatremia (serum sodium <136 mmol/L) | 0 or 1 |
| Total | 0–16 |
CMUI, Chiang Mai University Intussusception.