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Z91.0

Non-billable

Allergy status, other than to drugs and biological substances

Z91.0 is the ICD-10-CM code for Allergy status, other than to drugs and biological substances. It is a non-billable category code — use a more specific child code such as Z91.01 for billing.

Status
Header (non-billable)
Chapter
Z00-Z99
Parent
Z91
Subcodes
5
Edition
FY2026

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

Excludes2 — not included here

  • •Allergy status to drugs, medicaments, and biological substances (Z88.-)

Frequently asked questions

What is ICD-10 code Z91.0?
Z91.0 is the ICD-10-CM code for "Allergy status, other than to drugs and biological substances". It falls under Z00-Z99 Factors influencing health status and contact with health services.
Is Z91.0 a billable code?
No — Z91.0 is a non-billable header code. Use a more specific child code (such as Z91.01) for billing.
What are the subcodes of Z91.0?
Z91.0 has 5 more specific child codes, including Z91.01, Z91.02, Z91.03.

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

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