ICD-10-CM Z91.013 is the diagnosis code for Allergy to seafood. 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 Z91.013 sits in the ICD-10-CM classification helps ensure proper coding:
Yes, Z91.013 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
Z91.013 is the ICD-10-CM diagnosis code for "Allergy to seafood". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.
The parent code of Z91.013 is Z91.01 ("Food allergy status"). Z91.013 provides a more specific classification within this category.
Z91.013 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 Z91.013 when the patients documented diagnosis matches "Allergy to seafood" 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 seafood is Z91.013.
Yes, Z91.013 can be used as a primary diagnosis code since it is billable and specific.
Z91.013 is in Chapter 21 of the ICD-10-CM Tabular List.
Yes, Z91.013 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.