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Home/Diagnosis/ICD-10 Coding for Ascending Aorta Dilation

ICD-10 Coding for Ascending Aorta Dilation

I71.21
I77.810

Complete ICD-10-CM coding and documentation guide for icd-10 coding for ascending aorta dilation includes clinical validation requirements, medical necessity guidelines, and coding policies.

Also Known as:
Ascending Aortic Ectasia
Ascending Aortic Enlargement
ascending aortic aneurysm
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Key Information: ICD-10 Coding for Ascending Aorta Dilation

Essential facts and insights about ICD-10 Coding for Ascending Aorta Dilation

Use ICD-10 code I71.21 for aneurysm of ascending aorta without rupture, ensuring proper documentation in clinical notes.

Primary ICD-10-CM Codes

Aneurysm of ascending aorta without rupture

Billable Code
I71.21
Billable

Diagnostic Criteria

clinical:
  • • Imaging shows ascending aorta diameter ≥3.5 cm
documentation:
  • • Explicit mention of 'ascending aortic aneurysm'

Applicable To

  • • Ascending aortic aneurysm

Important Notes

  • • Ensure documentation specifies 'ascending' to avoid using unspecified codes.

Aortic ectasia

Billable Code
I77.810
Billable

Diagnostic Criteria

clinical:
  • • Imaging showing diameter <3.5 cm
documentation:
  • • No aneurysm criteria met

Applicable To

  • • Mild dilation of the aorta

Important Notes

  • • Ensure documentation specifies 'dilation' and not 'aneurysm'.
Ancillary Codes

Additional codes that may be used with this diagnosis

Q23.1

Congenital bicuspid aortic valve

Use if a bicuspid aortic valve is present.

I11.9

Hypertensive heart disease

Use if hypertension is a contributing factor.

Frequently Asked Questions

What is the ICD-10 code for ascending aorta dilation?

The ICD-10 code for ascending aorta dilation is I77.810 for mild dilation and I71.21 for aneurysm without rupture.

How is ascending aorta dilation documented?

Documentation should include the aortic segment, diameter measurement, and rupture status to ensure accurate coding.

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