What does ICD-10 code I71.6 mean?

ICD-10 code I71.6 is the standardized code used for thoracoabdominal aortic aneurysm, without rupture in medical records and coding systems.

When is ICD-10 code I71.6 used?

Doctors, hospitals, and insurers may use ICD-10 code I71.6 when recording thoracoabdominal aortic aneurysm, without rupture in a standardized format. This entry may also act as a broader category that points toward more specific child codes.

Does ICD-10 code I71.6 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 I71.6: Thoracoabdominal aortic aneurysm, without rupture

Name: ICD-10 Code I71.6: Thoracoabdominal aortic aneurysm, without rupture
Creator: HealthAssure Clinical Team
Published: 2026-05-26T12:46:38.762Z

I71.6 is an ICD-10 diagnosis entry used to group records related to Thoracoabdominal aortic aneurysm, without rupture. 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 26 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 thoracoabdominal aortic aneurysm, without rupture 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

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

I71.0Dissection of aorta I71.1Thoracic aortic aneurysm, ruptured I71.2Thoracic aortic aneurysm, without rupture I71.3Abdominal aortic aneurysm, ruptured I71.4Abdominal aortic aneurysm, without rupture I71.5Thoracoabdominal aortic aneurysm, ruptured I71.8Aortic aneurysm of unspecified site, rupturedbillable I71.9Aortic aneurysm of unspecified site, without rupturebillable

Mapped diagnoses and classifications

SNOMED_CT 426270006high

Aneurysm of suprarenal aorta

Source: SNOMED International ICD-10 map

SNOMED_CT 233984007high

Thoracoabdominal aortic aneurysm

Source: SNOMED International ICD-10 map

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

I71.6

Replacement codes

I71.60 — Thoracoabdominal aortic aneurysm, without rupture, unspecifiedI71.61 — Supraceliac aneurysm of the thoracoabdominal aorta, without ruptureI71.62 — Paravisceral aneurysm of the thoracoabdominal aorta, without rupture

Common synonyms

Thoracoabdominal aortic aneurysm, without rupture

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.