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Z91.012

Non-billable

Allergy to eggs

Z91.012 is the ICD-10-CM code for Allergy to eggs. It is a non-billable category code — use a more specific child code such as Z91.0120 for billing.

Status
Header (non-billable)
Chapter
Z00-Z99
Parent
Z91.01
Subcodes
3
Edition
FY2026

Z00-Z99 Factors influencing health status and contact with health services

What this means — in plain language

MedlinePlus · NIH

What 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.

No additional coding notes for this code.

Frequently asked questions

What is ICD-10 code Z91.012?
Z91.012 is the ICD-10-CM code for "Allergy to eggs". It falls under Z00-Z99 Factors influencing health status and contact with health services.
Is Z91.012 a billable code?
No — Z91.012 is a non-billable header code. Use a more specific child code (such as Z91.0120) for billing.
What are the subcodes of Z91.012?
Z91.012 has 3 more specific child codes, including Z91.0120, Z91.0121, Z91.0122.

Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.

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