T78.080A

Anaphylactic reaction due to egg with tolerance to baked egg, initial encounter

Billable code

This code does not map to a risk-adjusting HCC in the loaded models.

Coding notes

Excludes 1 never coded together · Excludes 2 may co-exist

Inherited from T78.080Anaphylactic reaction due to egg with tolerance to baked egg
Excludes 1

Anaphylactic reaction due to egg with reactivity to baked egg (T78.081)

Inherited from T78.0Anaphylactic reaction due to food
Synonyms

Anaphylactic reaction due to adverse food reaction Anaphylactic shock or reaction due to nonpoisonous foods Anaphylactoid reaction due to food

Inherited from T78Adverse effects, not elsewhere classified
Excludes 2

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

7th character

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

Valid 7th characters and their meanings
CharacterMeaning
Ainitial encounter
Dsubsequent encounter
Ssequela
Inherited from T66-T78Other and unspecified effects of external causes
Code also

, if applicable, place of occurrence, such as: highway rest stop (Y92.523) school (private) (public) (state) as the place of occurrence of the external cause (Y92.21-) service areas as the place of occurrence of the external cause (Y92.52-) single-family non-institutional (private) house as the place of occurrence of the external cause (Y92.01-) transport vehicle as the place of occurrence of the external cause (Y92.81-)

Inherited from chapter 19Injury, poisoning and certain other consequences of external causes
Excludes 2

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

Use additional

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

Note

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. (T07-T88) Injury, poisoning and certain other consequences of external causes (T07-T88) (T20-T32) Burns and corrosions (T20-T32) Includes: burns (thermal) from electrical heating appliances burns (thermal) from electricity burns (thermal) from flame burns (thermal) from friction burns (thermal) from hot air and hot gases burns (thermal) from hot objects burns (thermal) from lightning burns (thermal) from radiation chemical burn [corrosion] (external) (internal) scalds Excludes2: erythema [dermatitis] ab igne (L59.0) radiation-related disorders of the skin and subcutaneous tissue (L55-L59) sunburn (L55.-)

Official Guidelines for T78.080A

FY 2026 ›