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ICDMine.com › Browse ICD-10-CM Codes › Ch. 19: Injury, poisoning and certain other consequences of external causes (S00-T88) › Other and unspecified effects of external causes (T66-T78) › T78

T78Adverse effects, not elsewhere classified

ICD-10-CM category (non-billable header) code — part of Other and unspecified effects of external causes (T66-T78)

Code Details

Billable	No — use a more specific child code
Chapter	Chapter 19: Injury, poisoning and certain other consequences of external causes (S00-T88)
Section	Other and unspecified effects of external causes (T66-T78)

Valid 7th Characters

A	initial encounter
D	subsequent encounter
S	sequela

Coding Notes

Excludes2 (not part of this condition — may code both)

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

7th Character Note

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

Subcategories (6)

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

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