Kodex

Section

T78

Adverse effects, not elsewhere classified

Hierarchy

S00-T88 Injury, poisoning and certain other consequences of external causes (S00-T88)
- T66-T78 Other and unspecified effects of external causes (T66-T78)
  - T78 Adverse effects, not elsewhere classified
    - T78.0 Anaphylactic reaction due to food
    - T78.1 Other adverse food reactions, not elsewhere classified
    - T78.2 Anaphylactic shock, unspecified
    - T78.3 Angioneurotic edema
    - T78.4 Other and unspecified allergy
    - T78.8 Other adverse effects, not elsewhere classified

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
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.

Use Additional

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

Excludes 1

P10-P15 Birth trauma (P10-P15)
obstetric trauma (O70-O71)

Excludes 2

T78

complications of surgical and medical care NEC (T80-T88)
- T80-T88 Complications of surgical and medical care, not elsewhere classified (T80-T88)