ICD-10-CM Diagnosis Code T79.A9

The appropriate 7th character is to be added to each code from category T79

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

birth trauma (P10-P15)

obstetric trauma (O70-O71)

fibromyalgia (M79.7)

nontraumatic compartment syndrome (M79.A-)

acute respiratory distress syndrome (J80)

complications occurring during or following medical procedures (T80-T88)

complications of surgical and medical care NEC (T80-T88)

newborn respiratory distress syndrome (P22.0)

traumatic ischemic infarction of muscle (T79.6)

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.