Z91.01

Z91.01: Food allergy status

Non-billable headerICD-10-CM

Z91.01 is a non-billable header ICD-10-CM code for food allergy status. It cannot be billed on its own: choose one of the more specific child codes below.

Excludes2: not included here, but may coexist

The excluded condition is not part of this code, but a patient can have both. You may code both.

food additives allergy status (Z91.02)

Excludes2 inherited from the categories above Z91.01

Not part of this code, but both may be coded when both are present.

Written on Z91.0: Allergy status, other than to drugs and biological substances

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

Written on Z91: Personal risk factors, not elsewhere classified

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-)

Other codes that can never be billed with Z91.01

Their own Excludes1 notes name this code, so the conflict is not listed above.

Z91.0111Allergy to milk products with tolerance to baked milk
Z91.0112Allergy to milk products with reactivity to baked milk
Z91.0121Allergy to eggs with tolerance to baked egg
Z91.0122Allergy to eggs with reactivity to baked egg

Risk adjustment

No CMS-HCC V28 category: this code does not change a RAF score.

Code history

Unchanged in every release from FY2024 to FY2027.

Code to one of these instead Z91.01

6 child codes. Green means billable.