WPS Medicare Booklet July 23, 2012

*Increase one grade for multiple grade III or IV injuries involving more than 50% vessel circumference. *Decrease one grade for less than 25% vessel circumference disruption for grade IV or V. From Moore et al. with permission. Table 2 Chest wall injury scale Grade Injury Type Description of Injury ICD-9 AIS-90 I II ................
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