Diaphragm injury-trauma grading
Diaphragmatic injuries are graded I-V with increasing severity having higher grading.
25 cm2Note that the grading is increased by one grade for bilateral injuries, up to grade III.

Moore EE, et al. Organ injury scaling IV: thoracic vascular, lung, cardiac and diaphragm. J Trauma. 1994;36:229. Trauma scoring. Trauma.org. Available at http://www.trauma.org/archive/scores/ois-phrenic.html (Accessed 23 April 2008)