What does ICD-10 code I71 mean?

ICD-10 code I71 is the standardized code used for aortic aneurysm and dissection in medical records and coding systems.

When is ICD-10 code I71 used?

Doctors, hospitals, and insurers may use ICD-10 code I71 when recording aortic aneurysm and dissection in a standardized format. This entry may also act as a broader category that points toward more specific child codes.

Does ICD-10 code I71 confirm a diagnosis?

No. A code helps standardize documentation and claims, but it should not be read as a substitute for a clinician's full assessment.

ICD10

ICD-10 Code I71: Aortic aneurysm and dissection

Name: ICD-10 Code I71: Aortic aneurysm and dissection
Creator: HealthAssure Clinical Team
Published: 2026-05-21T06:13:51.083Z

I71 is an ICD-10 diagnosis entry used to group records related to Aortic aneurysm and dissection. You may see this entry in coding references, medical records, or claims workflows when a broader diagnosis category is being reviewed before a more specific code is chosen. ICD-10 entries help standardize how diagnoses are organized for coding, reporting, analytics, and documentation. This code sits within the broader ICD-10 area for Diseases of the circulatory system (I00-I99).

Reviewed by HealthAssure Clinical TeamUpdated 21 May 2026

What is this code?

ICD-10 entries help standardize how diagnoses are organized for coding, reporting, analytics, and documentation. This code sits within the broader ICD-10 area for Diseases of the circulatory system (I00-I99).

When is it used?

May be used when a clinician documents aortic aneurysm and dissection in a patient's medical record.
May appear in hospital records, claims, referrals, and clinical documentation.
This code may act more like a grouping or parent code, so a more specific child code may be used in final documentation when available.

What it does not mean

A code alone does not explain severity, treatment plan, or outcome.
A medical code should not be treated as a substitute for a doctor's diagnosis or advice.
This entry may represent a broader category rather than the most specific billable code.

Code hierarchy

chapter

9Diseases of the circulatory system (I00-I99)

block

I70-I79Diseases of arteries, arterioles and capillaries

currentI70-I79

Official coding notes

Applicable to

, if applicable:
syphilitic aortic aneurysm (A52.01)
traumatic aortic aneurysm (S25.09, S35.09)

Code first

, if applicable:
syphilitic aortic aneurysm (A52.01)
traumatic aortic aneurysm (S25.09, S35.09)

Where you may see this code

You may see this entry in coding references, medical records, or claims workflows when a broader diagnosis category is being reviewed before a more specific code is chosen.

Related specialists

CardiologistGeneral Physician

Sibling codes

I70Atherosclerosis I72Other aneurysm I73Other peripheral vascular diseases I74Arterial embolism and thrombosis I75Atheroembolism I76Septic arterial embolismbillable I77Other disorders of arteries and arterioles I78Diseases of capillaries I79Disorders of arteries, arterioles and capillaries in diseases classified elsewhere

Coding guidelines

Compatibility

Legacy code aligns to an official FY 2026 category. Frontend should resolve to the official category page and surface the billable child codes.

Legacy codes

I71

Replacement codes

I71.8 — Aortic aneurysm of unspecified site, rupturedI71.9 — Aortic aneurysm of unspecified site, without rupture

Common synonyms

Aortic aneurysm and dissection

Frequently asked questions

About this content

This page is prepared by HealthAssure's clinical team using official coding standards from ICD-10. AI tools assist with drafting explanations, which are then reviewed and verified by healthcare professionals for accuracy. This content is for informational purposes and does not replace professional medical advice. Meet our team.