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ICD-10-CM-2023 Diagnosis Codes Overview
ICD-10-CM-2023 > S00-T88 > T66-T78 > T78
T66-T78
Other and unspecified effects of external causes
T78

Adverse effects, not elsewhere classified

Excl2.:
complications of surgical and medical care NEC (T80-T88)
Info:
The appropriate 7th character is to be added to each code from category T78
A - initial encounter
D - subsequent encounter
S - sequela
T78.0

Anaphylactic reaction due to food

Info:
Anaphylactic reaction due to adverse food reaction
Anaphylactic shock or reaction due to nonpoisonous foods
Anaphylactoid reaction due to food
T78.00
Anaphylactic reaction due to unspecified food
T78.00XA
Anaphylactic reaction due to unspecified food : initial encounter
T78.00XD
Anaphylactic reaction due to unspecified food : subsequent encounter
T78.00XS
Anaphylactic reaction due to unspecified food : sequela
T78.01
Anaphylactic reaction due to peanuts
T78.01XA
Anaphylactic reaction due to peanuts : initial encounter
T78.01XD
Anaphylactic reaction due to peanuts : subsequent encounter
T78.01XS
Anaphylactic reaction due to peanuts : sequela
T78.02
Anaphylactic reaction due to shellfish (crustaceans)
T78.02XA
Anaphylactic reaction due to shellfish (crustaceans) : initial encounter
T78.02XD
Anaphylactic reaction due to shellfish (crustaceans) : subsequent encounter
T78.02XS
Anaphylactic reaction due to shellfish (crustaceans) : sequela
T78.03
Anaphylactic reaction due to other fish
T78.03XA
Anaphylactic reaction due to other fish : initial encounter
T78.03XD
Anaphylactic reaction due to other fish : subsequent encounter
T78.03XS
Anaphylactic reaction due to other fish : sequela
T78.04
Anaphylactic reaction due to fruits and vegetables
T78.04XA
Anaphylactic reaction due to fruits and vegetables : initial encounter
T78.04XD
Anaphylactic reaction due to fruits and vegetables : subsequent encounter
T78.04XS
Anaphylactic reaction due to fruits and vegetables : sequela
T78.05
Anaphylactic reaction due to tree nuts and seeds
Excl2.:
anaphylactic reaction due to peanuts (T78.01)
T78.05XA
Anaphylactic reaction due to tree nuts and seeds : initial encounter
T78.05XD
Anaphylactic reaction due to tree nuts and seeds : subsequent encounter
T78.05XS
Anaphylactic reaction due to tree nuts and seeds : sequela
T78.06
Anaphylactic reaction due to food additives
T78.06XA
Anaphylactic reaction due to food additives : initial encounter
T78.06XD
Anaphylactic reaction due to food additives : subsequent encounter
T78.06XS
Anaphylactic reaction due to food additives : sequela
T78.07
Anaphylactic reaction due to milk and dairy products
T78.07XA
Anaphylactic reaction due to milk and dairy products : initial encounter
T78.07XD
Anaphylactic reaction due to milk and dairy products : subsequent encounter
T78.07XS
Anaphylactic reaction due to milk and dairy products : sequela
T78.08
Anaphylactic reaction due to eggs
T78.08XA
Anaphylactic reaction due to eggs : initial encounter
T78.08XD
Anaphylactic reaction due to eggs : subsequent encounter
T78.08XS
Anaphylactic reaction due to eggs : sequela
T78.09
Anaphylactic reaction due to other food products
T78.09XA
Anaphylactic reaction due to other food products : initial encounter
T78.09XD
Anaphylactic reaction due to other food products : subsequent encounter
T78.09XS
Anaphylactic reaction due to other food products : sequela
T78.1

Other adverse food reactions, not elsewhere classified

Use add'l
code to identify the type of reaction, if applicable
Excl1.:
anaphylactic reaction or shock due to adverse food reaction (T78.0-)
anaphylactic reaction due to food (T78.0-)
bacterial food borne intoxications (A05.-)
Excl2.:
allergic and dietetic gastroenteritis and colitis (K52.29)
allergic rhinitis due to food (J30.5)
dermatitis due to food in contact with skin (L23.6, L24.6, L25.4)
dermatitis due to ingested food (L27.2)
food protein-induced enterocolitis syndrome (K52.21)
food protein-induced enteropathy (K52.22)
T78.1XXA
Other adverse food reactions, not elsewhere classified : initial encounter
T78.1XXD
Other adverse food reactions, not elsewhere classified : subsequent encounter
T78.1XXS
Other adverse food reactions, not elsewhere classified : sequela
T78.2

Anaphylactic shock, unspecified

Info:
Allergic shock
Anaphylactic reaction
Anaphylaxis
Excl1.:
anaphylactic reaction or shock due to adverse effect of correct medicinal substance properly administered (T88.6)
anaphylactic reaction or shock due to adverse food reaction (T78.0-)
anaphylactic reaction or shock due to serum (T80.5-)
T78.2XXA
Anaphylactic shock, unspecified : initial encounter
T78.2XXD
Anaphylactic shock, unspecified : subsequent encounter
T78.2XXS
Anaphylactic shock, unspecified : sequela
T78.3

Angioneurotic edema

Info:
Allergic angioedema
Giant urticaria
Quincke's edema
Excl1.:
serum urticaria (T80.6-)
urticaria (L50.-)
T78.3XXA
Angioneurotic edema : initial encounter
T78.3XXD
Angioneurotic edema : subsequent encounter
T78.3XXS
Angioneurotic edema : sequela
T78.4

Other and unspecified allergy

Excl1.:
specified types of allergic reaction such as:
allergic diarrhea (K52.29)
allergic gastroenteritis and colitis (K52.29)
dermatitis (L23-L25, L27.-)
food protein-induced enterocolitis syndrome (K52.21)
food protein-induced enteropathy (K52.22)
hay fever (J30.1)
T78.40
Allergy, unspecified
Info:
Allergic reaction NOS
Hypersensitivity NOS
T78.40XA
Allergy, unspecified : initial encounter
T78.40XD
Allergy, unspecified : subsequent encounter
T78.40XS
Allergy, unspecified : sequela
T78.41
Arthus phenomenon
Info:
Arthus reaction
T78.41XA
Arthus phenomenon : initial encounter
T78.41XD
Arthus phenomenon : subsequent encounter
T78.41XS
Arthus phenomenon : sequela
T78.49
Other allergy
T78.49XA
Other allergy : initial encounter
T78.49XD
Other allergy : subsequent encounter
T78.49XS
Other allergy : sequela
T78.8

Other adverse effects, not elsewhere classified

T78.8XXA
Other adverse effects, not elsewhere classified : initial encounter
T78.8XXD
Other adverse effects, not elsewhere classified : subsequent encounter
T78.8XXS
Other adverse effects, not elsewhere classified : sequela

 

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