Z91.01
Non-billableFood allergy status
Z91.01 is the ICD-10-CM code for Food allergy status. It is a non-billable category code — use a more specific child code such as Z91.010 for billing.
Z00-Z99 Factors influencing health status and contact with health services
What this means — in plain language
MedlinePlus · NIHWhat is a food allergy? A food allergy is an abnormal immune system reaction to certain foods. Your immune system normally protects you from germs. But if you have a food allergy, your immune system mistakenly reacts to certain foods as if they were harmful. This reaction is usually mild. But in some cases, it can be serious or even life-threatening. A food intolerance is different than a food allergy. If you have a…
Read more about Food Allergy at MedlinePlus ↗Source: U.S. National Library of Medicine (MedlinePlus). Informational only — not medical advice.
Excludes2 — not included here
- •food additives allergy status (Z91.02)
Frequently asked questions
Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.
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