Z91.0
Header — not billableAllergy status, other than to drugs and biological substances
The ICD-10 code for allergy status, other than to drugs and biological substances is Z91.0.
Z91.0 is a non-billable header code. It groups related conditions but cannot be used on its own for reimbursement — select one of the 5 more specific codes below.
Clinical notes
Excludes2 (not included here)
An Excludes2 note means the excluded condition is not part of this one, but a patient can have both at the same time — in that case both codes may be reported together.
- Allergy status to drugs, medicaments, and biological substances (Z88.-)
Documentation support
General coding-documentation guidance — not a substitute for payer-specific requirements or professional coding judgment.
- •This is a non-billable header code. Documentation must support a more specific child code before this diagnosis can be reported on a claim.
- •As a general rule, code to the highest level of specificity supported by the documentation in the medical record.
Related codes in this category
- Z91.1Patient's noncompliance with medical treatment and regimennon-billable header
- Z91.4Personal history of psychological trauma, not elsewhere classifiednon-billable header
- Z91.5Personal history of self-harmnon-billable header
- Z91.8Other specified personal risk factors, not elsewhere classifiednon-billable header
- Z91.ACaregiver's noncompliance with patient's medical treatment and regimennon-billable header
- Z91.BPersonal risk factor of exposure to diethylstilbestrol
- Z91.0Allergy status, other than to drugs and biological substancesnon-billable header