Z91.0
ICD-10Non-billable categoryAllergy status, oth than to drugs and biological substances
Official ICD-10-CM descriptor (FY2026)
Allergy status, other than to drugs and biological substances
Z91.0 is a category heading, not a billable code. CMS does not accept it on a claim; report one of the more specific codes beneath it.
Excludes2
Not included here. The condition is not part of this code, but a patient may have both, and both codes may be reported together.
- Allergy status to drugs, medicaments, and biological substances (Z88.-)
ICD-10-CM FY2026 defines 5 codes beneath Z91.0. See the ICD-10-CM index for what this site publishes.
Related codes in Z91
- Z91.1Patient's noncompliance with medical treatment and regimencategory
- Z91.ACarers noncompl with patient's medical treatment and regimencategory
- Z91.4Personal history of psychological trauma, NECcategory
- Z91.5Personal history of self-harmcategory
- Z91.8Oth personal risk factors, not elsewhere classifiedcategory
- Z91.BPersonal risk factor of exposure to diethylstilbestrol
Where this code sits
- Parent code
- Z91
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ICD-10-CM FY2026. Centers for Medicare & Medicaid Services (CMS) / National Center for Health Statistics (NCHS), “2026 ICD-10-CM Code Descriptions in Tabular Order” (icd10cm_order_2026.txt). Download the original file from cms.gov. Public domain (US Government work). Descriptors, billable flags and instructional notes on this page are reproduced from that file without modification. Krasyn adds no clinical guidance.