Injury, Poisoning and Certain Other Consequences of External Causes

**Notes:** - Use secondary code(s) from Chapter 20, External causes of morbidity, to indicate cause of injury. Codes within the T section that include the external cause do not require an additional external cause code

**Excludes1:** - birth trauma (P10-P15) - obstetric trauma (O70-O71)

**Use additional code:** - code to identify any retained foreign body, if applicable (Z18.-)