ICD-10-CM Billable Code

T78.120

Other adverse food reaction due to egg with tolerance to baked egg

Clinical Classification Guidelines

Excludes Type 1

  • Other adverse food reaction due to egg with reactivity to baked egg (T78.121)

Medical Intelligence & Overview

ICD-10 code T78.120 refers to a specific type of allergic reaction related to eggs. This condition involves adverse reactions to eggs in general, but individuals with this diagnosis can typically tolerate baked eggs. This means that while certain egg preparations can trigger symptoms, thoroughly cooked eggs in baked goods are often safe for those affected. Recognizing this distinction helps manage dietary choices and prevents unnecessary restrictions while ensuring safety.

Causes & Symptoms

Clinical Causes: Immune system response to egg proteins: The body mistakenly identifies egg proteins as harmful substances, triggering an immune response. Sensitization to egg proteins: Repeated exposure can lead to hypersensitivity, with specific reactions varying among individuals. Differences in egg protein structure after baking: Baking alters the structure of egg proteins, which can reduce their allergenic potential for some individuals.

Key Symptoms: Hives or skin rashes Swelling of lips, face, or throat Difficulty breathing or wheezing Stomach pain, nausea, or vomiting Asymptomatic reactions: some individuals may experience no symptoms after baked egg consumption despite sensitivity to raw or less-cooked eggs

Diagnostic & Treatment

Diagnosis Path: Diagnosis typically involves clinical evaluation and allergy testing. These may include skin prick tests or blood tests to measure specific IgE antibodies to egg proteins. An allergist can conduct oral food challenges, including baked egg testing, under medical supervision to determine tolerance levels and confirm the diagnosis.

Treatment Protocols: The main approach is avoiding reactions while maintaining nutritional health. Management strategies include:

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

Clinical Advice & FAQs

Billing Guidance

Is T78.120 a billable ICD-10 code?
Yes, T78.120 is a specific, billable code that can be used to indicate a diagnosis for reimbursement purposes.

Documentation

How do I report T78.120?
Clinical documentation must specify the nature of Other adverse food reaction due to egg with tolerance to baked egg and any associated comorbidities for accurate reporting.

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