Contusion of thorax left initial encounter icd 10 July 8, 2019 16 32 64 128 Contusion of left front wall of thorax initial encounter icd 10 Contusion of left back wall of thorax initial encounter icd 10 Contusion of thoracic wall icd 10 Right chest wall contusion icd 10 Left chest contusion icd 10 Contusion of thorax icd 10