ICD-10-CM Diagnosis Code S31.31

The appropriate 7th character is to be added to each code from category S31

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

any associated:

spinal cord injury (S24.0, S24.1-, S34.0-, S34.1-)

wound infection

birth trauma (P10-P15)

obstetric trauma (O70-O71)

traumatic amputation of part of abdomen, lower back and pelvis (S38.2-, S38.3)

open wound of hip (S71.00-S71.02)

open fracture of pelvis (S32.1--S32.9 with 7th character B)

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.