Is Z91.0 a billable code?
No. Z91.0 is a header code that groups 17 more specific codes. Use one of the billable codes listed on this page instead.
ICD-10-CM FY2027 diagnosis code
Z91.0: Allergy status, other than to drugs and biological substances
Header code: not billableValid for dates of service October 1, 2026 to September 30, 2027
Z91.0 groups related diagnoses under allergy status, other than to drugs and biological substances. It cannot be used on a claim by itself. Choose the billable code below that matches the patient's record.
Billable codes under Z91.0
- Z91.010Allergy to peanuts
- Z91.0110Allergy to milk products, unspecified
- Z91.0111Allergy to milk products with tolerance to baked milk
- Z91.0112Allergy to milk products with reactivity to baked milk
- Z91.0120Allergy to eggs, unspecified
- Z91.0121Allergy to eggs with tolerance to baked egg
- Z91.0122Allergy to eggs with reactivity to baked egg
- Z91.013Allergy to seafood
- Z91.014Allergy to mammalian meats
- Z91.018Allergy to other foods
- Z91.02Food additives allergy status
- Z91.030Bee allergy status
- Z91.038Other insect allergy status
- Z91.040Latex allergy status
- Z91.041Radiographic dye allergy status
- Z91.048Other nonmedicinal substance allergy status
- Z91.09Other allergy status, other than to drugs and biological substances
Other codes in Z91 Personal risk factors, not elsewhere classified
- Z91.1Patient's noncompliance with medical treatment and regimenheader
- Z91.4Personal history of psychological trauma, not elsewhere classifiedheader
- Z91.5Personal history of self-harmheader
- Z91.8Other specified personal risk factors, not elsewhere classifiedheader
- Z91.ACaregiver's noncompliance with patient's medical treatment and regimenheader
- Z91.BPersonal risk factor of exposure to diethylstilbestrol
Z91.0 questions
What does Z91.0 mean?
Z91.0 is the ICD-10-CM code for Allergy status, other than to drugs and biological substances. It is in chapter 22, Factors influencing health status and contact with health services (Z00-Z99).
Code titles come from the official ICD-10-CM files published by the CDC National Center for Health Statistics. Always check payer rules and the clinical record before billing.