ICD-10-CM Billable Code

Z91.01

Food allergy status

Clinical Classification Guidelines

Excludes Type 2

  • food additives allergy status (Z91.02)

Medical Intelligence & Overview

Food allergy status, classified under ICD-10 code Z91.01, describes whether an individual has a known food allergy or sensitivity. Recognizing and documenting this status is essential for tailored healthcare and safe dietary planning. A food allergy is an immune system response that occurs soon after eating a certain food, which can cause various symptoms ranging from mild to severe. Knowing a patient's food allergy status helps healthcare providers to prevent allergic reactions and manage patient care effectively.

Causes & Symptoms

Clinical Causes: Genetic predisposition to allergic reactions Previous exposure to allergenic foods, leading to sensitization Environmental factors influencing immune system response Cross-reactivity between different foods or substances Atopic family history, including allergies to pollen, dust, or other environmental allergens

Key Symptoms: Itching or tingling sensation in the mouth Swelling of lips, face, tongue, or throat Hives or skin rash Difficulty breathing or wheezing Abdominal pain, nausea, or vomiting Dizziness or fainting in severe cases Anaphylaxis, a life-threatening allergic reaction

Diagnostic & Treatment

Diagnosis Path: Diagnosis of food allergy status involves a combination of medical history review, identification of symptoms following food exposure, and confirmatory testing such as skin prick tests or blood tests measuring specific IgE antibodies. An allergist may also use elimination diets to identify problematic foods and conduct oral food challenges under medical supervision to verify allergic responses.

Treatment Protocols: Management of food allergy status primarily focuses on avoidance of identified allergens and preparedness for accidental exposures. Treatment options 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 Z91.01 a billable ICD-10 code?
Yes, Z91.01 is a specific, billable code that can be used to indicate a diagnosis for reimbursement purposes.

Documentation

How do I report Z91.01?
Clinical documentation must specify the nature of Food allergy status and any associated comorbidities for accurate reporting.

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