ICD-10-CM I77.810 is the diagnosis code for Thoracic aortic ectasia. 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.
Always refer to the official ICD-10-CM Tabular List for complete coding guidelines. Ensure documentation supports the specificity of the code selected. When in doubt, consult a certified medical coder or the latest CMS guidelines.
Understanding where I77.810 sits in the ICD-10-CM classification helps ensure proper coding:
Yes, I77.810 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
I77.810 is the ICD-10-CM diagnosis code for "Thoracic aortic ectasia". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.
The parent code of I77.810 is I77.81 ("Aortic ectasia"). I77.810 provides a more specific classification within this category.
I77.810 is located in Section I70-I79 — "Diseases of arteries, arterioles and capillaries" within Chapter 9 of the ICD-10-CM Tabular List.
Use I77.810 when the patients documented diagnosis matches "Thoracic aortic ectasia" 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 Thoracic aortic ectasia is I77.810.
Yes, I77.810 can be used as a primary diagnosis code since it is billable and specific.
I77.810 is in Chapter 9 of the ICD-10-CM Tabular List.
Yes, I77.810 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.