What is the ICD-10 code for thoracic aortic ectasia?

The ICD-10 code for thoracic aortic ectasia is I77.810. It is used when imaging confirms thoracic aortic dilation of 4 cm or more.

How is aortic ectasia documented?

Aortic ectasia documentation should include the site, diameter, contributing factors, and any treatment plans. Imaging reports should confirm the dilation.

ICD-10 Coding for Aortic Ectasia(I77.810, E78.5, I71.2)

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Learn about ICD-10 coding for aortic ectasia, including documentation requirements, common pitfalls, and billing considerations.

Also known as:

Aortic DilationAortic Enlargementaortic dilatation

Related ICD-10 Code Ranges

Complete code families applicable to Aortic Ectasia

I00-I99Primary Range

Diseases of the circulatory system

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Code Comparison: When to Use Each Code

Compare key differences between these codes to ensure accurate selection

Code	Description	When to Use	Key Documentation
I77.810	Thoracic aortic ectasia	Use when imaging confirms thoracic aortic dilation ≥4 cm.	Imaging confirming thoracic location Measurement ≥4 cm
I77.811	Abdominal aortic ectasia	Use when imaging confirms abdominal aortic dilation ≥3 cm.	Imaging confirming abdominal location Measurement ≥3 cm
I77.812	Thoracoabdominal aortic ectasia	Use when imaging confirms thoracoabdominal aortic dilation.	Imaging confirming thoracoabdominal location Measurement criteria as per thoracic and abdominal
I77.819	Aortic ectasia, unspecified	Use when the site of aortic ectasia is not specified.	Explicit statement: 'Site not specified' Exclusion of dissection/rupture

Primary ICD-10-CM Codes

Thoracic aortic ectasia

I77.810Billable

Differential Codes

Alternative codes to consider when ruling out similar conditions

Thoracic aortic aneurysmI71.2

Use for aneurysms ≥5 cm or with dissection/rupture.

Abdominal aortic aneurysmI71.4

Use for aneurysms ≥3 cm if repair is considered.

Thoracoabdominal aortic aneurysmI71.6

Use for aneurysms with significant dilation or complications.

Aortic aneurysm, unspecifiedI71.9

Use for unspecified aneurysms with significant dilation.

Documentation & Coding Risks

Avoid these common issues when documenting Aortic Ectasia.

Vague documentation of aortic dilation

Impact

Clinical: Inaccurate clinical assessment., Regulatory: Non-compliance with documentation standards., Financial: Potential for denied claims.

Mitigation

Use structured templates., Ensure imaging reports are included.

Using aneurysm codes for ectasia

Impact

Reimbursement: Incorrect DRG assignment leading to reimbursement issues., Compliance: Non-compliance with coding guidelines., Data Quality: Inaccurate clinical data representation.

Mitigation

Ensure diameter criteria for aneurysms are met before using aneurysm codes.

Unspecified Codes

Impact

Frequent use of unspecified codes without justification.

Mitigation

Encourage detailed documentation specifying site and diameter.

Frequently Asked Questions

Documentation requirements, coding pitfalls and FAQs for conditions coded with I77.810.

Primary Code

I77.810

Thoracic aortic ectasia

Quick Navigation

ICD-10 codes12

Coding risks3

FAQs2

ICD-10 Coding for Aortic Ectasia(I77.810, E78.5, I71.2)

Documentation & Coding Risks

Frequently Asked Questions

What is the ICD-10 code for thoracic aortic ectasia?

How is aortic ectasia documented?

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