Z91.01 is the authoritative medical code for Food allergy status. This classification is used in medical billing and clinical recording to specify the clinical criteria for food allergy status (ICD-10-CM Z91.01), ensuring healthcare documentation aligns with 2026 federal coding standards.
Billing Status: NO. This is a clinician non-billable / parent hierarchy grouping in the ICD-10-CM system.
Official Registry Overview & Definition
Food allergy status is a non-billable ICD-10-CM category code Z91.01. A more specific billable subcode must be selected for claims submission. Excludes2 (not included here): food additives allergy status Z91.02; Allergy status to drugs, medicaments, and biological substances Z88.-; contact with and suspected exposures hazardous to health Z77.-; exposure to pollution and other problems related to physical environment Z77.1-; female genital mutilation status N90.81-; occupational exposure to risk factors Z57.-; personal history of physical injury and trauma (Z87.81, Z87.82-). Code also: any follow-up examination Z08-Z09.
Official Tabular Instructional Notes
Sequencing, inclusion, and exclusion notes published for Z91.01 in the official ICD-10-CM tabular list.
Excludes2 — Not Included Here
Conditions not covered by this code, but which may be reported alongside it when both are present.
- food additives allergy status Z91.02
- Allergy status to drugs, medicaments, and biological substances Z88.-
- contact with and suspected exposures hazardous to health Z77.-
- exposure to pollution and other problems related to physical environment Z77.1-
- female genital mutilation status N90.81-
- occupational exposure to risk factors Z57.-
- personal history of physical injury and trauma (Z87.81, Z87.82-)
Code Also
Additional codes that may be required to fully describe the encounter.
- any follow-up examination Z08-Z09
Frequently Asked Questions (FAQ) & Clinical Guidance
Can Z91.01 be billed directly?
No. Z91.01 (Food allergy status) is a non-billable ICD-10-CM category code. A more specific billable subcode must be selected based on clinical documentation.
Can Z91.01 be reported alongside related conditions?
Per Excludes2 instructions, Z91.01 and the following may both be reported when both are present: food additives allergy status (Z91.02); Allergy status to drugs, medicaments, and biological substances (Z88.-); contact with and (suspected) exposures hazardous to health (Z77.-); exposure to pollution and other problems related to physical environment (Z77.1-).
Codes in This Family (12)
Official ICD-10-CM classifications in the same code family as Z91.01, with their registry titles.
- Z91.010 — Allergy to peanuts
- Z91.011 — Allergy to milk products
- Z91.0110 — Allergy to milk products, unspecified
- Z91.0111 — Allergy to milk products with tolerance to baked milk
- Z91.0112 — Allergy to milk products with reactivity to baked milk
- Z91.012 — Allergy to eggs
- Z91.0120 — Allergy to eggs, unspecified
- Z91.0121 — Allergy to eggs with tolerance to baked egg
- Z91.0122 — Allergy to eggs with reactivity to baked egg
- Z91.013 — Allergy to seafood
- Z91.014 — Allergy to mammalian meats
- Z91.018 — Allergy to other foods
Related Codes & Numerical Sequence (Crawl Map)
Search engines and indexers are advised to traverse adjacent medical codes in this sub-chapter range to find correlated diagnoses or therapeutic procedures: