2019

  1. ICD-10-CM Codes
    2. ›
  2. S00-T88 Injury, poisoning and certain other consequences of external causes
    3. ›
  3. T66-T78 Other and unspecified effects of external causes
    4. ›
  4. T78- Adverse effects, not elsewhere classified
    5. ›

2019 ICD-10-CM Diagnosis Code T78.1

Other adverse food reactions, not elsewhere classified

Use Additional
Use Additional Help
Certain conditions have both an underlying etiology and multiple body system manifestations due to the underlying etiology. For such conditions the ICD-10-CM has a coding convention that requires the underlying condition be sequenced first followed by the manifestation. Wherever such a combination exists there is a "use additional code" note at the etiology code, and a "code first" note at the manifestation code. These instructional notes indicate the proper sequencing order of the codes, etiology followed by manifestation. In most cases the manifestation codes will have in the code title, "in diseases classified elsewhere." Codes with this title are a component of the etiology/manifestation convention. The code title indicates that it is a manifestation code. "In diseases classified elsewhere" codes are never permitted to be used as first listed or principle diagnosis codes. They must be used in conjunction with an underlying condition code and they must be listed following the underlying condition.
  • code to identify the type of reaction, if applicable
Type 1 Excludes
Type 1 Excludes Help
A type 1 excludes note is a pure excludes. It means "not coded here". A type 1 excludes note indicates that the code excluded should never be used at the same time as T78.1. A type 1 excludes note is for used for when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
  • anaphylactic reaction or shock due to adverse food reaction (
    ICD-10-CM Diagnosis Code T78.0

    Anaphylactic reaction due to food

      2016 2017 2018 2019 Non-Billable/Non-Specific Code
    Applicable To
    • Anaphylactic reaction due to adverse food reaction
    • Anaphylactic shock or reaction due to nonpoisonous foods
    • Anaphylactoid reaction due to food
    T78.0-
    )
  • anaphylactic reaction due to food (
    ICD-10-CM Diagnosis Code T78.0

    Anaphylactic reaction due to food

      2016 2017 2018 2019 Non-Billable/Non-Specific Code
    Applicable To
    • Anaphylactic reaction due to adverse food reaction
    • Anaphylactic shock or reaction due to nonpoisonous foods
    • Anaphylactoid reaction due to food
    T78.0-
    )
  • bacterial food borne intoxications (
    ICD-10-CM Diagnosis Code A05
    • A05 Other bacterial foodborne intoxications, not ...
      • A05.0 Foodborne staphylococcal intoxication
      • A05.1 Botulism food poisoning
      • A05.2 Foodborne Clostridium perfringens [Clostridiu...
      • A05.3 Foodborne Vibrio parahaemolyticus intoxicatio...
      • A05.4 Foodborne Bacillus cereus intoxication
      • A05.5 Foodborne Vibrio vulnificus intoxication
      • A05.8 Other specified bacterial foodborne intoxicat...
      • A05.9 Bacterial foodborne intoxication, unspecified...
    A05.-
    )
Type 2 Excludes
Type 2 Excludes Help
A type 2 excludes note represents "not included here". A type 2 excludes note indicates that the condition excluded is not part of the condition it is excluded from but a patient may have both conditions at the same time. When a type 2 excludes note appears under a code it is acceptable to use both the code (T78.1) and the excluded code together.
  • allergic and dietetic gastroenteritis and colitis (
    ICD-10-CM Diagnosis Code K52.29

    Other allergic and dietetic gastroenteritis and colitis

      2017 - New Code 2018 2019 Billable/Specific Code
    Applicable To
    • Food hypersensitivity gastroenteritis or colitis
    • Immediate gastrointestinal hypersensitivity
    K52.29
    )
  • allergic rhinitis due to food (
    ICD-10-CM Diagnosis Code J30.5

    Allergic rhinitis due to food

      2016 2017 2018 2019 Billable/Specific Code
    J30.5
    )
  • dermatitis due to food in contact with skin (
    ICD-10-CM Diagnosis Code L23.6

    Allergic contact dermatitis due to food in contact with the skin

      2016 2017 2018 2019 Billable/Specific Code
    Type 2 Excludes
    • dermatitis due to ingested food (L27.2)
    L23.6
    ,
    ICD-10-CM Diagnosis Code L24.6

    Irritant contact dermatitis due to food in contact with skin

      2016 2017 2018 2019 Billable/Specific Code
    Type 2 Excludes
    • dermatitis due to ingested food (L27.2)
    L24.6
    ,
    ICD-10-CM Diagnosis Code L25.4

    Unspecified contact dermatitis due to food in contact with skin

      2016 2017 2018 2019 Billable/Specific Code
    Type 2 Excludes
    • dermatitis due to ingested food (L27.2)
    L25.4
    )
  • dermatitis due to ingested food (
    ICD-10-CM Diagnosis Code L27.2

    Dermatitis due to ingested food

      2016 2017 2018 2019 Billable/Specific Code
    Type 2 Excludes
    L27.2
    )
  • food protein-induced enterocolitis syndrome (
    ICD-10-CM Diagnosis Code K52.21

    Food protein-induced enterocolitis syndrome

      2017 - New Code 2018 2019 Billable/Specific Code
    Applicable To
    • FPIES
    Use Additional
    • code for hypovolemic shock, if present (R57.1)
    K52.21
    )
  • food protein-induced enteropathy (
    ICD-10-CM Diagnosis Code K52.22

    Food protein-induced enteropathy

      2017 - New Code 2018 2019 Billable/Specific Code
    K52.22
    )
The following code(s) above T78.1 contain annotation back-references
Annotation Back-References
In this context, annotation back-references refer to codes that contain:
  • Applicable To annotations, or
  • Code Also annotations, or
  • Code First annotations, or
  • Excludes1 annotations, or
  • Excludes2 annotations, or
  • Includes annotations, or
  • Note annotations, or
  • Use Additional annotations
that may be applicable to T78.1:
  • S00-T88
    2019 ICD-10-CM Range S00-T88

    Injury, poisoning and certain other consequences of external causes

    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
    Type 1 Excludes
    Use Additional
    • code to identify any retained foreign body, if applicable (Z18.-)
    Injury, poisoning and certain other consequences of external causes
  • T78
    ICD-10-CM Diagnosis Code T78

    Adverse effects, not elsewhere classified

      2016 2017 2018 2019 Non-Billable/Non-Specific Code
    Type 2 Excludes
    • complications of surgical and medical care NEC (T80-T88)
    Adverse effects, not elsewhere classified
Approximate Synonyms Code History
Code annotations containing back-references to T78.1:

Diagnosis Index entries containing back-references to T78.1:

ICD-10-CM Codes Adjacent To T78.1
T78.07XD …… subsequent encounter
T78.07XS …… sequela
T78.08 Anaphylactic reaction due to eggs
T78.08XA …… initial encounter
T78.08XD …… subsequent encounter
T78.08XS …… sequela
T78.09 Anaphylactic reaction due to other food products
T78.09XA …… initial encounter
T78.09XD …… subsequent encounter
T78.09XS …… sequela
T78.1 Other adverse food reactions, not elsewhere classified
T78.1XXA …… initial encounter
T78.1XXD …… subsequent encounter
T78.1XXS …… sequela
T78.2 Anaphylactic shock, unspecified
T78.2XXA …… initial encounter
T78.2XXD …… subsequent encounter
T78.2XXS …… sequela
T78.3 Angioneurotic edema
T78.3XXA …… initial encounter
T78.3XXD …… subsequent encounter

Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.

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