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Home/Diagnosis/ICD-10 Coding for Atrial Septal Aneurysm

ICD-10 Coding for Atrial Septal Aneurysm

Q21.1
I51.0

Complete ICD-10-CM coding and documentation guide for icd-10 coding for atrial septal aneurysm includes clinical validation requirements, medical necessity guidelines, and coding policies.

Also Known as:
Interatrial Septal Aneurysm
ASA
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Key Information: ICD-10 Coding for Atrial Septal Aneurysm

Essential facts and insights about ICD-10 Coding for Atrial Septal Aneurysm

Use ICD-10 code Q21.1 for atrial septal defect, ensuring proper documentation in clinical notes.

Primary ICD-10-CM Codes

Atrial septal defect

Non-Billable
Q21.1
Non-Billable

Diagnostic Criteria

clinical:
  • • Presence of congenital aneurysm with echocardiographic evidence
coding:
  • • Differentiate from acquired defects using clinical history

Applicable To

  • • Congenital atrial septal aneurysm
  • • Patent foramen ovale

Important Notes

  • • Ensure documentation specifies congenital vs. acquired nature of the aneurysm.

Acquired cardiac septal defect

Billable Code
I51.0
Billable

Diagnostic Criteria

clinical:
  • • Clinical history of myocardial infarction or cardiac surgery
  • • Imaging showing acquired defect

Applicable To

  • • Post-myocardial infarction septal defect

Important Notes

  • • Document the cause of the acquired defect clearly.
Ancillary Codes

Additional codes that may be used with this diagnosis

I63.9

Acute ischemic stroke

Use when ASA is implicated in embolic events.

Frequently Asked Questions

What is the ICD-10 code for atrial septal aneurysm?

The ICD-10 code for congenital atrial septal aneurysm is Q21.1, which includes atrial septal defects and patent foramen ovale.

How is atrial septal aneurysm documented?

Documentation should include echocardiogram findings, aneurysm size, location, and any associated shunts, such as patent foramen ovale.

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