What is the ICD-10 code for nonrheumatic mitral stenosis?

The ICD-10 code for nonrheumatic mitral stenosis is I34.2. It is used when mitral stenosis is confirmed as nonrheumatic.

How do you code rheumatic mitral stenosis?

Rheumatic mitral stenosis is coded as I05.0 in ICD-10. This code is used when there is a confirmed history of rheumatic fever.

ICD-10 Coding for Mitral Stenosis(I34.2, I05.0, I08.0)

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Comprehensive guide to ICD-10 coding for mitral stenosis, including nonrheumatic and rheumatic cases, with documentation requirements and coding pitfalls.

Also known as:

Mitral Valve Stenosis

Related ICD-10 Code Ranges

Complete code families applicable to Mitral Stenosis

I00-I99Primary Range

Diseases of the circulatory system

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Code Comparison: When to Use Each Code

Compare key differences between these codes to ensure accurate selection

Code	Description	When to Use	Key Documentation
I34.2	Nonrheumatic mitral stenosis	Use when mitral stenosis is confirmed as nonrheumatic.	Echo report showing valve area ≤1.5 cm² Mean gradient ≥5 mmHg No rheumatic stigmata
I05.0	Rheumatic mitral stenosis	Use when mitral stenosis is confirmed as rheumatic.	Positive ASO titer Echo showing commissural fusion
Q23.2	Congenital mitral stenosis	Use for congenital cases identified at birth or in early childhood.	Pediatric echo showing congenital anomaly

Primary ICD-10-CM Codes

Nonrheumatic mitral (valve) stenosis

I34.2Billable

Differential Codes

Alternative codes to consider when ruling out similar conditions

Rheumatic mitral stenosisI05.0

Congenital mitral stenosisQ23.2

Nonrheumatic mitral stenosisI34.2

Documentation & Coding Risks

Avoid these common issues when documenting Mitral Stenosis.

Omitting etiology in documentation

Impact

Clinical: Leads to incorrect treatment plans., Regulatory: Non-compliance with coding standards., Financial: Potential claim denials.

Mitigation

Always specify etiology in clinical notes., Use templates to ensure completeness.

Using I34.2 for rheumatic cases

Impact

Reimbursement: Incorrect reimbursement due to misclassification., Compliance: Non-compliance with coding guidelines., Data Quality: Inaccurate clinical data affecting patient records.

Mitigation

Verify rheumatic history and use I05.0 if applicable.

Coding I34.2 + I08.0 together

Impact

Reimbursement: Potential denial of claims., Compliance: Violation of coding exclusivity rules., Data Quality: Confusion in clinical data interpretation.

Mitigation

Use I08.0 exclusively for rheumatic multivalvular disease.

Etiology documentation

Impact

Failure to document etiology can lead to incorrect coding.

Mitigation

Implement mandatory fields in EHR for etiology.

Frequently Asked Questions

Documentation requirements, coding pitfalls and FAQs for conditions coded with I34.2.

Primary Code

I34.2

Nonrheumatic mitral (valve) stenosis

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ICD-10 codes6

Coding risks4

FAQs2

ICD-10 Coding for Mitral Stenosis(I34.2, I05.0, I08.0)

Documentation & Coding Risks

Frequently Asked Questions

What is the ICD-10 code for nonrheumatic mitral stenosis?

How do you code rheumatic mitral stenosis?

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