Billable / Specific Code
ICD-10-CM I77.812 is the diagnosis code for Thoracoabdominal 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 I77.812 sits in the ICD-10-CM classification helps ensure proper coding:
Yes, I77.812 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
I77.812 is the ICD-10-CM diagnosis code for "Thoracoabdominal aortic ectasia". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.
The parent code of I77.812 is I77.81 ("Aortic ectasia"). I77.812 provides a more specific classification within this category.
I77.812 is located in Section I70-I79 — "Diseases of arteries, arterioles and capillaries" within Chapter 9 of the ICD-10-CM Tabular List.
Use I77.812 when the patients documented diagnosis matches "Thoracoabdominal 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 Thoracoabdominal aortic ectasia is I77.812.
Yes, I77.812 can be used as a primary diagnosis code since it is billable and specific.
I77.812 is in Chapter 9 of the ICD-10-CM Tabular List.
Yes, I77.812 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.