ICD10
ICD-10 Code I71.2: Thoracic aortic aneurysm, without rupture
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 thoracic 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
category
I71Aortic aneurysm and dissection
currentI71
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
Related codes
Sibling codes
I71.0Dissection of aortaI71.1Thoracic aortic aneurysm, rupturedI71.3Abdominal aortic aneurysm, rupturedI71.4Abdominal aortic aneurysm, without ruptureI71.5Thoracoabdominal aortic aneurysm, rupturedI71.6Thoracoabdominal aortic aneurysm, without ruptureI71.8Aortic aneurysm of unspecified site, rupturedbillableI71.9Aortic aneurysm of unspecified site, without rupturebillable
Mapped diagnoses and classifications
SNOMED_CT 871665004high
Acquired dilatation of ascending aorta and aortic root
Source: SNOMED International ICD-10 map
SNOMED_CT 712578006high
Aneurysm of aortic arch
Source: SNOMED International ICD-10 map
SNOMED_CT 373134008high
Aneurysm of aortic root
Source: SNOMED International ICD-10 map
SNOMED_CT 425963007high
Aneurysm of ascending aorta
Source: SNOMED International ICD-10 map
SNOMED_CT 2831000119107high
Aneurysm of descending thoracic aorta
Source: SNOMED International ICD-10 map
SNOMED_CT 433068007high
Aneurysm of thoracic aorta
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
I71.2
Replacement codes
I71.20 — Thoracic aortic aneurysm, without rupture, unspecifiedI71.21 — Aneurysm of the ascending aorta, without ruptureI71.22 — Aneurysm of the aortic arch, without ruptureI71.23 — Aneurysm of the descending thoracic aorta, without rupture
Common synonyms
Thoracic 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.