ICD-10-CM Diagnosis Code S91.311

The appropriate 7th character is to be added to each code from category S91

code to identify any retained foreign body, if applicable (Z18.-)

any associated wound infection

birth trauma (P10-P15)

obstetric trauma (O70-O71)

open fracture of ankle, foot and toes (S92.-with 7th character B)

traumatic amputation of ankle and foot (S98.-)

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

The chapter uses the S-section for coding different types of injuries related to single body regions and the T-section to cover injuries to unspecified body regions as well as poisoning and certain other consequences of external causes.