Z91.0120Billable
Allergy to eggs, unspecified
- Chapter
- 21. Factors influencing health status and contact with health services
- Category
- Z91
- Effective date
- October 1, 2026
Related codes in category Z91
Z91Personal risk factors, not elsewhere classifiedZ91.0Allergy status, oth than to drugs and biological substancesZ91.01Food allergy statusZ91.010Allergy to peanutsYesZ91.011Allergy to milk productsZ91.0110Allergy to milk products, unspecifiedYesZ91.0111Allergy to milk products with tolerance to baked milkYesZ91.0112Allergy to milk products with reactivity to baked milkYesZ91.012Allergy to eggsZ91.0121Allergy to eggs with tolerance to baked eggYesZ91.0122Allergy to eggs with reactivity to baked eggYesZ91.013Allergy to seafoodYes
Frequently asked questions
What is ICD-10 code Z91.0120?
Z91.0120 is an ICD-10-CM diagnosis code for Allergy to eggs, unspecified.
Is Z91.0120 a billable code?
Yes. Z91.0120 is billable and specific enough to be used on a claim.
What ICD-10-CM chapter is Z91.0120 in?
Z91.0120 falls under Chapter 21: Factors influencing health status and contact with health services.
When did Z91.0120 become effective?
Z91.0120 has been effective since October 1, 2026, per the CMS/CDC ICD-10-CM annual release.
What other codes are related to Z91.0120?
Z91.0120 belongs to category Z91, which includes 12 other codes — see the related codes list on this page.
ICD-10-CM data maintained by CDC/CMS (public domain). Always verify codes with authoritative sources before making coding or billing decisions.