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ICD-10-CM Codes
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S00-T88
Injury, poisoning and certain other consequences of external causes
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T66-T78
Other and unspecified effects of external causes
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T78-
Adverse effects, not elsewhere classified
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2023 ICD-10-CM Diagnosis Code T78.0
2023 ICD-10-CM Diagnosis Code T78.0
Anaphylactic reaction due to food
2016 2017 2018 2019 2020 2021 2022 2023 Non-Billable/Non-Specific Code
- T78.0 should not be used for reimbursement purposes as there are multiple codes below it that contain a greater level of detail.
- The 2023 edition of ICD-10-CM T78.0 became effective on October 1, 2022.
- This is the American ICD-10-CM version of T78.0 - other international versions of ICD-10 T78.0 may differ.
Applicable To- Anaphylactic reaction due to adverse food reaction
- Anaphylactic shock or reaction due to nonpoisonous foods
- Anaphylactoid reaction due to food
The following code(s) above
T78.0 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
T78.0:
- 2016 (effective 10/1/2015): New code (first year of non-draft ICD-10-CM)
- 2017 (effective 10/1/2016): No change
- 2018 (effective 10/1/2017): No change
- 2019 (effective 10/1/2018): No change
- 2020 (effective 10/1/2019): No change
- 2021 (effective 10/1/2020): No change
- 2022 (effective 10/1/2021): No change
- 2023 (effective 10/1/2022): No change
Code annotations containing back-references to T78.0:
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Type 1 Excludes: R57, T78.1, T78.1, T78.2, T79.4, T61, T62, T88.6
ICD-10-CM Diagnosis Code R57
Shock, not elsewhere classified
2016 2017 2018 2019 2020 2021 2022 2023 Non-Billable/Non-Specific Code
Type 1 Excludes- anaphylactic shock NOS (T78.2)
- anaphylactic reaction or shock due to adverse food reaction (T78.0-)
- anaphylactic shock due to adverse effect of correct drug or medicament properly administered (T88.6)
- anaphylactic shock due to serum (T80.5-)
- electric shock (T75.4)
- obstetric shock (O75.1)
- postprocedural shock (T81.1-)
- psychic shock (F43.0)
- shock complicating or following ectopic or molar pregnancy (O00-O07, O08.3)
- shock due to anesthesia (T88.2)
- shock due to lightning (T75.01)
- traumatic shock (T79.4)
- toxic shock syndrome (A48.3)
ICD-10-CM Diagnosis Code T78.1
Other adverse food reactions, not elsewhere classified
2016 2017 2018 2019 2020 2021 2022 2023 Non-Billable/Non-Specific Code
Type 1 Excludes- anaphylactic reaction or shock due to adverse food reaction (T78.0-)
- anaphylactic reaction due to food (T78.0-)
- bacterial food borne intoxications (A05.-)
Type 2 Excludes- 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)
Use Additional- code to identify the type of reaction, if applicable
ICD-10-CM Diagnosis Code T78.1
Other adverse food reactions, not elsewhere classified
2016 2017 2018 2019 2020 2021 2022 2023 Non-Billable/Non-Specific Code
Type 1 Excludes- anaphylactic reaction or shock due to adverse food reaction (T78.0-)
- anaphylactic reaction due to food (T78.0-)
- bacterial food borne intoxications (A05.-)
Type 2 Excludes- 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)
Use Additional- code to identify the type of reaction, if applicable
ICD-10-CM Diagnosis Code T78.2
Anaphylactic shock, unspecified
2016 2017 2018 2019 2020 2021 2022 2023 Non-Billable/Non-Specific Code
Applicable To- Allergic shock
- Anaphylactic reaction
- Anaphylaxis
Type 1 Excludes- 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-)
ICD-10-CM Diagnosis Code T79.4
Traumatic shock
2016 2017 2018 2019 2020 2021 2022 2023 Non-Billable/Non-Specific Code
Applicable To- Shock (immediate) (delayed) following injury
Type 1 Excludes- anaphylactic shock due to adverse food reaction (T78.0-)
- anaphylactic shock due to correct medicinal substance properly administered (T88.6)
- anaphylactic shock due to serum (T80.5-)
- anaphylactic shock NOS (T78.2)
- electric shock (T75.4)
- nontraumatic shock NEC (R57.-)
- obstetric shock (O75.1)
- postprocedural shock (T81.1-)
- septic shock (R65.21)
- shock complicating abortion or ectopic or molar pregnancy (O00-O07, O08.3)
- shock due to anesthesia (T88.2)
- shock due to lightning (T75.01)
- shock NOS (R57.9)
ICD-10-CM Diagnosis Code T61
Toxic effect of noxious substances eaten as seafood
2016 2017 2018 2019 2020 2021 2022 2023 Non-Billable/Non-Specific Code
Type 1 Excludes- allergic reaction to food, such as:
- anaphylactic reaction or shock due to adverse food reaction (T78.0-)
- bacterial foodborne intoxications (A05.-)
- dermatitis (L23.6, L25.4, L27.2)
- food protein-induced enterocolitis syndrome (K52.21)
- food protein-induced enteropathy (K52.22)
- gastroenteritis (noninfective) (K52.29)
- toxic effect of aflatoxin and other mycotoxins (T64)
- toxic effect of cyanides (T65.0-)
- toxic effect of harmful algae bloom (T65.82-)
- toxic effect of hydrogen cyanide (T57.3-)
- toxic effect of mercury (T56.1-)
- toxic effect of red tide (T65.82-)
ICD-10-CM Diagnosis Code T62
Toxic effect of other noxious substances eaten as food
2016 2017 2018 2019 2020 2021 2022 2023 Non-Billable/Non-Specific Code
Type 1 Excludes- allergic reaction to food, such as:
- anaphylactic shock (reaction) due to adverse food reaction (T78.0-)
- bacterial food borne intoxications (A05.-)
- dermatitis (L23.6, L25.4, L27.2)
- food protein-induced enterocolitis syndrome (K52.21)
- food protein-induced enteropathy (K52.22)
- gastroenteritis (noninfective) (K52.29)
- toxic effect of aflatoxin and other mycotoxins (T64)
- toxic effect of cyanides (T65.0-)
- toxic effect of hydrogen cyanide (T57.3-)
- toxic effect of mercury (T56.1-)
ICD-10-CM Diagnosis Code T88.6
Anaphylactic reaction due to adverse effect of correct drug or medicament properly administered
2016 2017 2018 2019 2020 2021 2022 2023 Non-Billable/Non-Specific Code
Applicable To- Anaphylactic shock due to adverse effect of correct drug or medicament properly administered
- Anaphylactoid reaction NOS
Type 1 Excludes- anaphylactic reaction due to serum (T80.5-)
- anaphylactic shock or reaction due to adverse food reaction (T78.0-)
Use Additional- code for adverse effect, if applicable, to identify drug (T36-T50 with fifth or sixth character 5)
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Type 2 Excludes: L27
ICD-10-CM Diagnosis Code L27
Dermatitis due to substances taken internally
2016 2017 2018 2019 2020 2021 2022 2023 Non-Billable/Non-Specific Code
Type 2 Excludes- adverse food reaction, except dermatitis (T78.0-T78.1)
- contact dermatitis (L23-L25)
- drug photoallergic response (L56.1)
- drug phototoxic response (L56.0)
- urticaria (L50.-)
ICD-10-CM Codes Adjacent To T78.0
T76.9 Unspecified maltreatment, suspected
T76.91 Unspecified adult maltreatment, suspected
T76.92 Unspecified child maltreatment, suspected
T78 Adverse effects, not elsewhere classified
T78.0
Anaphylactic reaction due to food
T78.00 Anaphylactic reaction due to unspecified food
T78.01 Anaphylactic reaction due to peanuts
T78.02 Anaphylactic reaction due to shellfish (crustaceans)
Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.
