Z91.0121
Billable codeAllergy to eggs with tolerance to baked egg
The ICD-10 code for allergy to eggs with tolerance to baked egg is Z91.0121.
Clinical notes
Excludes1 (not coded here)
An Excludes1 note is a pure exclusion: the excluded condition and this code should never be reported together, because the two conditions cannot occur at the same time (e.g. a congenital form vs. an acquired form of the same disease).
- Allergy to eggs with reactivity to baked egg (Z91.0122)
Documentation support
General coding-documentation guidance — not a substitute for payer-specific requirements or professional coding judgment.
- •Confirm the excluded condition(s) listed above are not also present — Excludes1 conditions cannot be coded together with this one.
- •As a general rule, code to the highest level of specificity supported by the documentation in the medical record.
Related codes in this category
- Z91.0120Allergy to eggs, unspecified
- Z91.0122Allergy to eggs with reactivity to baked egg
- Z91.0121Allergy to eggs with tolerance to baked egg
Associated MS-DRGs
Z91.0121 can serve as the principal diagnosis for these Medicare Severity Diagnosis-Related Groups.
Informational only — actual DRG assignment also depends on procedures, complications/comorbidities (CC/MCC), discharge status, and payer-specific rules not reflected here.