All ICD10 Codes

I71

Non-Billable
ChapterI00–I99
Rankcategory
Official Description

Aortic aneurysm and dissection

Use a more specific code (2 billable, 7 non-billable)
I71.0Dissection of aortahas subcodesI71.1Thoracic aortic aneurysm, rupturedhas subcodesI71.2Thoracic aortic aneurysm, without rupturehas subcodesI71.3Abdominal aortic aneurysm, rupturedhas subcodesI71.4Abdominal aortic aneurysm, without rupturehas subcodesI71.5Thoracoabdominal aortic aneurysm, rupturedhas subcodesI71.6Thoracoabdominal aortic aneurysm, without rupturehas subcodesI71.8Aortic aneurysm of unspecified site, rupturedI71.9Aortic aneurysm of unspecified site, without rupture
Metadata & Insights
  • •Non-billable category (requires more specific sub-code).
  • •Chapter 9: Diseases of the Circulatory System (I00-I99).

CH9 Parent Instructions

Excludes2(Not included here. Code separately if applicable.)
  • certain conditions originating in the perinatal period (P04-P96)
  • certain infectious and parasitic diseases (A00-B99)
  • complications of pregnancy, childbirth and the puerperium (O00-O9A)
  • congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)
  • endocrine, nutritional and metabolic diseases (E00-E88)
  • injury, poisoning and certain other consequences of external causes (S00-T88)
  • neoplasms (C00-D49)
  • symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
  • systemic connective tissue disorders (M30-M36)
  • transient cerebral ischemic attacks and related syndromes (G45.-)

Instructional Notes

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

Clinical Hierarchy

BillableHas subcodes
CH9Diseases of the circulatory system (I00-I99)
I70-I79Diseases of arteries, arterioles and capillaries (I70-I79)
I71Aortic aneurysm and dissectionNot billable
I71.0Dissection of aortaSubcodes
I71.1Thoracic aortic aneurysm, rupturedSubcodes
I71.2Thoracic aortic aneurysm, without ruptureSubcodes
I71.3Abdominal aortic aneurysm, rupturedSubcodes
I71.4Abdominal aortic aneurysm, without ruptureSubcodes
I71.5Thoracoabdominal aortic aneurysm, rupturedSubcodes
I71.6Thoracoabdominal aortic aneurysm, without ruptureSubcodes
I71.8Aortic aneurysm of unspecified site, rupturedBillable
I71.9Aortic aneurysm of unspecified site, without ruptureBillable

Applicable Ancestor Context

The following parent sections contain instructions or notes that apply to I71:

chapterCH9
Diseases of the circulatory system (I00-I99)
View context instructions

MS-DRG Classification

2026

No direct MS-DRG triggers identified.

Cross Reference

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