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Z91.0122

Billable

Allergy to eggs with reactivity to baked egg

This code does not map to an HCC category in any model (V28, V24, ESRD, RxHCC).

What This Code Means

A person is allergic to eggs and continues to have allergic reactions even when eggs are baked into foods.

Coding Tips

  • This indicates a heat-stable egg protein allergy requiring strict avoidance
  • Document severity and type of reactions to guide patient safety precautions

Excludes 1 — Do NOT code together

  • Allergy to egg with tolerance to baked egg (Z91.0121)

Code Hierarchy

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