ICD-10-CM Z91.018 is the diagnosis code for Allergy to other foods. This code falls under the section "Persons with potential health hazards related to family and personal history and certain conditions influencing health status" within Chapter 21 — Factors influencing health status and contact with health services (Z00-Z99). It is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. Medical coders and healthcare providers use this code to document and classify diagnoses in electronic health records, insurance claims, and clinical databases.
Understanding where Z91.018 sits in the ICD-10-CM classification helps ensure proper coding:
Yes, Z91.018 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
Z91.018 is the ICD-10-CM diagnosis code for "Allergy to other foods". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.
The parent code of Z91.018 is Z91.01 ("Food allergy status"). Z91.018 provides a more specific classification within this category.
Z91.018 is located in Section Z77-Z99 — "Persons with potential health hazards related to family and personal history and certain conditions influencing health status" within Chapter 21 of the ICD-10-CM Tabular List.
Use Z91.018 when the patients documented diagnosis matches "Allergy to other foods" and the clinical documentation supports this level of specificity. Always verify with the latest ICD-10-CM guidelines and payer requirements.
The ICD-10-CM code for Allergy to other foods is Z91.018.
Yes, Z91.018 can be used as a primary diagnosis code since it is billable and specific.
Z91.018 is in Chapter 21 of the ICD-10-CM Tabular List.
Yes, Z91.018 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.