Billable / Specific Code
ICD-10-CM I79.1 is the diagnosis code for Aortitis in diseases classified elsewhere. This code falls under the section "Diseases of arteries, arterioles and capillaries" within Chapter 9 — Diseases of the circulatory system (I00-I99). 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.
The following conditions should never be coded at the same time as I79.1. They are mutually exclusive:
Understanding where I79.1 sits in the ICD-10-CM classification helps ensure proper coding:
Yes, I79.1 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
I79.1 is the ICD-10-CM diagnosis code for "Aortitis in diseases classified elsewhere". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.
The parent code of I79.1 is I79 ("Disorders of arteries, arterioles and capillaries in diseases classified elsewhere"). I79.1 provides a more specific classification within this category.
I79.1 is located in Section I70-I79 — "Diseases of arteries, arterioles and capillaries" within Chapter 9 of the ICD-10-CM Tabular List.
Use I79.1 when the patients documented diagnosis matches "Aortitis in diseases classified elsewhere" 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 Aortitis in diseases classified elsewhere is I79.1.
Yes, I79.1 can be used as a primary diagnosis code since it is billable and specific.
I79.1 is in Chapter 9 of the ICD-10-CM Tabular List.
Type 1 Excludes for I79.1 include: syphilitic aortitis (A52.02).
Yes, I79.1 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.