S20.34 - External constriction of front wall of thorax S20.3 - Other and unspecified superficial injuries of front wall of thorax S20.34 - External constriction of front wall of thorax S20.341 - External constriction of right front wall of thorax S20.342 - External constriction of left front wall of thorax S20.349 - External constriction of unspecified front wall of thorax