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ICD-10 Coding for Tetralogy of Fallot(Q21.3, Q20.1, Q21.1)

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Comprehensive guide on ICD-10 coding for Tetralogy of Fallot, including documentation requirements and common coding pitfalls.

Also known as:
TOFFallot's Tetralogy
Related ICD-10 Code Ranges

Complete code families applicable to Tetralogy of Fallot

Q00-Q99Primary Range

Congenital malformations, deformations and chromosomal abnormalities

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Code Comparison: When to Use Each Code

Compare key differences between these codes to ensure accurate selection

CodeDescription
Q21.3Tetralogy of Fallot
Q22.0Pulmonary valve atresia
Primary ICD-10-CM Codes
Tetralogy of Fallot
Q21.3Billable
Differential Codes

Alternative codes to consider when ruling out similar conditions

Double outlet right ventricleQ20.1
Atrial septal defectQ21.1

Documentation & Coding Risks

Avoid these common issues when documenting Tetralogy of Fallot.

Omitting genetic syndrome codes

Impact

Clinical: Incomplete patient profile., Regulatory: Non-compliance with coding standards., Financial: Potential loss of reimbursement for associated conditions.

Mitigation

Review genetic test results, Include all relevant codes

Coding Q21.82 for pentalogy

Impact

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

Mitigation

Code Q21.3 and Q21.1 separately.

Incomplete documentation of TOF components

Impact

Failure to document all four defects can lead to audit flags.

Mitigation

Use structured templates to ensure comprehensive documentation.

Frequently Asked Questions

Related condition guides

Documentation requirements, coding pitfalls and FAQs for conditions coded with Q21.3.