All ICD10 Codes

I71.01

Non-Billable
ChapterI00–I99
Ranksubcategory
Official Description

Dissection of thoracic aorta

Use a more specific code (4 billable)
I71.010Dissection of ascending aortaI71.011Dissection of aortic archI71.012Dissection of descending thoracic aortaI71.019Dissection of thoracic aorta, unspecified
Metadata & Insights
  • •Non-billable category (requires more specific sub-code).
  • •Chapter 9: Diseases of the Circulatory System (I00-I99).
General instructions are available for the parent sections:
View CH9 NotesView I71 Notes

Clinical Hierarchy

BillableHas subcodes
CH9Diseases of the circulatory system (I00-I99)
I70-I79Diseases of arteries, arterioles and capillaries (I70-I79)
I71Aortic aneurysm and dissection
I71.0Dissection of aorta
I71.01Dissection of thoracic aortaNot billable
I71.010Dissection of ascending aortaBillable
I71.011Dissection of aortic archBillable
I71.012Dissection of descending thoracic aortaBillable
I71.019Dissection of thoracic aorta, unspecifiedBillable

Applicable Ancestor Context

The following parent sections contain instructions or notes that apply to I71.01:

categoryI71
Aortic aneurysm and dissection
View context instructions
chapterCH9
Diseases of the circulatory system (I00-I99)
View context instructions

Code History

MS-DRG Classification

2026

No direct MS-DRG triggers identified.

Cross Reference

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