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  6. 2024 ICD-10-CM Code T78.0
Version 2024
Non-Billable Code

2024 ICD-10-CM Diagnosis Code T78.0

Anaphylactic reaction due to food

ICD-10-CM Code:
T78.0
ICD-10 Code for:
Anaphylactic reaction due to food
Is Billable?
Not Valid for Submission
Code Navigator:

Code Classification

  • Injury, poisoning and certain other consequences of external causes
    (S00–T88)
    • Other and unspecified effects of external causes
      (T66-T78)
      • Adverse effects, not elsewhere classified
        (T78)

T78.0 is a non-specific and non-billable diagnosis code code, consider using a code with a higher level of specificity for a diagnosis of anaphylactic reaction due to food. The code is not specific and is NOT valid for the year 2024 for the submission of HIPAA-covered transactions. Category or Header define the heading of a category of codes that may be further subdivided by the use of 4th, 5th, 6th or 7th characters.

Specific Coding Applicable to Anaphylactic reaction due to food

Non-specific codes like T78.0 require more digits to indicate the appropriate level of specificity. Consider using any of the following ICD-10-CM codes with a higher level of specificity when coding for anaphylactic reaction due to food:

  • T78.00 for Anaphylactic reaction due to unspecified food - NON-BILLABLE CODE

  • Use T78.00XA for initial encounter - BILLABLE CODE

  • Use T78.00XD for subsequent encounter - BILLABLE CODE

  • Use T78.00XS for sequela - BILLABLE CODE

  • T78.01 for Anaphylactic reaction due to peanuts - NON-BILLABLE CODE

  • Use T78.01XA for initial encounter - BILLABLE CODE

  • Use T78.01XD for subsequent encounter - BILLABLE CODE

  • Use T78.01XS for sequela - BILLABLE CODE

  • T78.02 for Anaphylactic reaction due to shellfish (crustaceans) - NON-BILLABLE CODE

  • Use T78.02XA for initial encounter - BILLABLE CODE

  • Use T78.02XD for subsequent encounter - BILLABLE CODE

  • Use T78.02XS for sequela - BILLABLE CODE

  • T78.03 for Anaphylactic reaction due to other fish - NON-BILLABLE CODE

  • Use T78.03XA for initial encounter - BILLABLE CODE

  • Use T78.03XD for subsequent encounter - BILLABLE CODE

  • Use T78.03XS for sequela - BILLABLE CODE

  • T78.04 for Anaphylactic reaction due to fruits and vegetables - NON-BILLABLE CODE

  • Use T78.04XA for initial encounter - BILLABLE CODE

  • Use T78.04XD for subsequent encounter - BILLABLE CODE

  • Use T78.04XS for sequela - BILLABLE CODE

  • T78.05 for Anaphylactic reaction due to tree nuts and seeds - NON-BILLABLE CODE

  • Use T78.05XA for initial encounter - BILLABLE CODE

  • Use T78.05XD for subsequent encounter - BILLABLE CODE

  • Use T78.05XS for sequela - BILLABLE CODE

  • T78.06 for Anaphylactic reaction due to food additives - NON-BILLABLE CODE

  • Use T78.06XA for initial encounter - BILLABLE CODE

  • Use T78.06XD for subsequent encounter - BILLABLE CODE

  • Use T78.06XS for sequela - BILLABLE CODE

  • T78.07 for Anaphylactic reaction due to milk and dairy products - NON-BILLABLE CODE

  • Use T78.07XA for initial encounter - BILLABLE CODE

  • Use T78.07XD for subsequent encounter - BILLABLE CODE

  • Use T78.07XS for sequela - BILLABLE CODE

  • T78.08 for Anaphylactic reaction due to eggs - NON-BILLABLE CODE

  • Use T78.08XA for initial encounter - BILLABLE CODE

  • Use T78.08XD for subsequent encounter - BILLABLE CODE

  • Use T78.08XS for sequela - BILLABLE CODE

  • T78.09 for Anaphylactic reaction due to other food products - NON-BILLABLE CODE

  • Use T78.09XA for initial encounter - BILLABLE CODE

  • Use T78.09XD for subsequent encounter - BILLABLE CODE

  • Use T78.09XS for sequela - BILLABLE CODE

Coding Guidelines

The appropriate 7th character is to be added to each code from block Adverse effects, not elsewhere classified (T78). Use the following options for the aplicable episode of care:

  • A - initial encounter
  • D - subsequent encounter
  • S - sequela

Tabular List of Diseases and Injuries

The following annotation back-references are applicable to this diagnosis code. The Tabular List of Diseases and Injuries is a list of ICD-10-CM codes, organized "head to toe" into chapters and sections with coding notes and guidance for inclusions, exclusions, descriptions and more.


Inclusion Terms

Inclusion Terms
These terms are the conditions for which that code is to be used. The terms may be synonyms of the code title, or, in the case of "other specified" codes, the terms are a list of the various conditions assigned to that code. The inclusion terms are not necessarily exhaustive. Additional terms found only in the Alphabetic Index may also be assigned to a code.
  • Anaphylactic reaction due to adverse food reaction
  • Anaphylactic shock or reaction due to nonpoisonous foods
  • Anaphylactoid reaction due to food

Patient Education


Anaphylaxis

Anaphylaxis is a serious allergic reaction. It can begin very quickly, and symptoms may be life-threatening. The most common causes are reactions to foods (especially peanuts), medications, and stinging insects. Other causes include exercise and exposure to latex. Sometimes no cause can be found.

It can affect many organs:

  • Skin - itching, hives, redness, swelling
  • Nose - sneezing, stuffy nose, runny nose
  • Mouth - itching, swelling of the lips or tongue
  • Throat - itching, tightness, trouble swallowing, swelling of the back of the throat
  • Chest - shortness of breath, coughing, wheezing, chest pain or tightness
  • Heart - weak pulse, passing out, shock
  • Gastrointestinal tract - vomiting, diarrhea, cramps
  • Nervous system - dizziness or fainting

If someone is having a serious allergic reaction, call 911. If an auto-injector is available, give the person the injection right away.


[Learn More in MedlinePlus]

Food Allergy

Food allergy is an abnormal response to a food triggered by your body's immune system.

In adults, the foods that most often trigger allergic reactions include fish, shellfish, peanuts, and tree nuts, such as walnuts. Problem foods for children can include eggs, milk, peanuts, tree nuts, soy, and wheat.

The allergic reaction may be mild. In rare cases it can cause a severe reaction called anaphylaxis. Symptoms of food allergy include:

  • Itching or swelling in your mouth
  • Vomiting, diarrhea, or abdominal cramps and pain
  • Hives or eczema
  • Tightening of the throat and trouble breathing
  • Drop in blood pressure

Your health care provider may use a detailed history, elimination diet, and skin and blood tests to diagnose a food allergy.

When you have food allergies, you must be prepared to treat an accidental exposure. Wear a medical alert bracelet or necklace, and carry an auto-injector device containing epinephrine (adrenaline).

You can only prevent the symptoms of food allergy by avoiding the food. After you and your health care provider have identified the foods to which you are sensitive, you must remove them from your diet.


[Learn More in MedlinePlus]

Code History

  • FY 2024 - No Change, effective from 10/1/2023 through 9/30/2024
  • FY 2023 - No Change, effective from 10/1/2022 through 9/30/2023
  • FY 2022 - No Change, effective from 10/1/2021 through 9/30/2022
  • FY 2021 - No Change, effective from 10/1/2020 through 9/30/2021
  • FY 2020 - No Change, effective from 10/1/2019 through 9/30/2020
  • FY 2019 - No Change, effective from 10/1/2018 through 9/30/2019
  • FY 2018 - No Change, effective from 10/1/2017 through 9/30/2018
  • FY 2017 - No Change, effective from 10/1/2016 through 9/30/2017
  • FY 2016 - New Code, effective from 10/1/2015 through 9/30/2016. This was the first year ICD-10-CM was implemented into the HIPAA code set.