T78.4 ICD 10 Code is a non-billable and non-specific code and should not be used to indicate a diagnosis for reimbursement purposes. There are other codes below it with greater level of diagnosis detail. The 2023 edition of the American ICD-10-CM code became effective on October 1, 2022.

Type 1 excludes for T78.4 ICD 10 code
  • 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)

Codes
Possible back-references that may be applicable or related to T78.4 ICD10 Code:

Present On Admission (POA Exempt)

T78.4 ICD 10 code is considered exempt from POA reporting

Clinical information about T78.4 ICD 10 code

An allergy is a reaction by your immune system to something that does not bother most other people. People who have allergies often are sensitive to more than one thing. Substances that often cause reactions are:

  • Pollen
  • Dust mites
  • Mold spores
  • Pet dander
  • Food
  • Insect stings
  • Medicines

Normally, your immune system fights germs. It is your body's defense system. In most allergic reactions, however, it is responding to a false alarm. Genes and the environment probably both play a role.

Allergies can cause a variety of symptoms such as a runny nose, sneezing, itching, rashes, swelling, or asthma. Allergies can range from minor to severe. Anaphylaxis is a severe reaction that can be life-threatening. Doctors use skin and blood tests to diagnose allergies. Treatments include medicines, allergy shots, and avoiding the substances that cause the reactions.

The information in this box was provided by MedlinePlus.gov