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Home/Diagnosis/ICD-10 Coding for Right-to-Left Shunt

ICD-10 Coding for Right-to-Left Shunt

Q21.1
I27.2

Complete ICD-10-CM coding and documentation guide for icd-10 coding for right-to-left shunt includes clinical validation requirements, medical necessity guidelines, and coding policies.

Also Known as:
RLS
Intracardiac Shunt
Paradoxical Embolism
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Key Information: ICD-10 Coding for Right-to-Left Shunt

Essential facts and insights about ICD-10 Coding for Right-to-Left Shunt

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

  • • Confirmed ASD with right-to-left flow on imaging

Applicable To

  • • Patent foramen ovale (PFO)

Important Notes

  • • Ensure documentation specifies the direction of the shunt.

Eisenmenger syndrome

Non-Billable
I27.2
Non-Billable

Diagnostic Criteria

  • • Pulmonary artery pressure >60 mmHg
  • • Evidence of shunt reversal

Applicable To

  • • Pulmonary hypertension due to shunt reversal

Important Notes

  • • Document the underlying congenital defect causing the syndrome.
Ancillary Codes

Additional codes that may be used with this diagnosis

R09.02

Hypoxemia

Use to indicate hypoxemia resulting from the shunt.

R23.0

Cyanosis

Use to indicate cyanosis due to the shunt.

Frequently Asked Questions

How is a right-to-left shunt coded in ICD-10?

Right-to-left shunts are coded based on the underlying defect, such as Q21.1 for atrial septal defect or I27.2 for Eisenmenger syndrome.

What documentation is needed for coding a right-to-left shunt?

Documentation must specify the underlying defect, shunt direction, and any associated symptoms like hypoxemia or cyanosis.

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