ICD-10-CM Diagnosis Code T78.03

Anaphylactic reaction due to adverse food reaction

Anaphylactic shock or reaction due to nonpoisonous foods

Anaphylactoid reaction due to food

The appropriate 7th character is to be added to each code from category T78

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

birth trauma (P10-P15)

obstetric trauma (O70-O71)

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

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.