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ICD-10 Coding for Ascending Aorta Ectasia(I77.810, I71.0, I71.21)

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Learn about the ICD-10 coding for ascending aorta ectasia, including documentation requirements and clinical validation criteria.

Also known as:
Thoracic Aortic EctasiaAortic Dilation
Related ICD-10 Code Ranges

Complete code families applicable to Ascending Aorta Ectasia

I00-I99Primary Range

Diseases of the circulatory system

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Primary ICD-10-CM Codes
Thoracic aortic ectasia
I77.810Billable
Differential Codes

Alternative codes to consider when ruling out similar conditions

Ascending aortic aneurysmI71.21

Use when dilation is ≥5.5 cm or >50% diameter increase.

Documentation & Coding Risks

Avoid these common issues when documenting Ascending Aorta Ectasia.

Using unspecified codes when specific site is known.

Impact

Clinical: Leads to inaccurate clinical records., Regulatory: Increases risk of audit issues., Financial: Potential for reimbursement denials.

Mitigation

Always specify the site in documentation.

Confusing ectasia with aneurysm.

Impact

Reimbursement: Incorrect coding may lead to inappropriate DRG assignment., Compliance: Risk of audit failure due to incorrect code usage., Data Quality: Impacts clinical data accuracy and patient records.

Mitigation

Verify aortic diameter and use I77.810 for diameters <55mm.

Incorrect site coding

Impact

Using unspecified codes when the site is documented.

Mitigation

Ensure documentation specifies the exact site of ectasia.

Frequently Asked Questions

Related condition guides

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