Facebook tracking pixel
I35.0
ICD-10-CM
Nonrheumatic Aortic Stenosis

Find information on nonrheumatic aortic stenosis including clinical documentation, medical coding, and healthcare resources. This page covers details related to aortic valve stenosis, diagnosis codes (ICD-10), symptoms, treatment, and severe aortic stenosis management. Learn about the differences between rheumatic and nonrheumatic aortic stenosis, diagnostic criteria, and implications for patient care. Explore resources for healthcare professionals covering echocardiography findings, aortic valve replacement (AVR) considerations, and transcatheter aortic valve replacement (TAVR).

Also known as

Degenerative Aortic Stenosis
Calcific Aortic Stenosis

Diagnosis Snapshot

Key Facts
  • Definition : Narrowing of the aortic valve opening, obstructing blood flow from the heart.
  • Clinical Signs : Chest pain, shortness of breath, fainting, heart murmur.
  • Common Settings : Cardiology clinic, hospital, cardiac catheterization lab.

Related ICD-10 Code Ranges

Complete code families applicable to AAPC I35.0 Coding
I35.0

Aortic valve stenosis

Narrowing of the aortic valve opening.

I34.0

Mitral valve stenosis

Narrowing of the mitral valve, often rheumatic.

I05-I09

Rheumatic heart diseases

Heart conditions caused by rheumatic fever.

I50.0-I50.9

Heart failure

Heart's inability to pump blood effectively.

Code-Specific Guidance

Decision Tree for

Follow this step-by-step guide to choose the correct ICD-10 code.

Is the aortic stenosis congenital?

  • Yes

    Code as Q25.1 Congenital stenosis of aortic valve

  • No

    Is it calcified?

Code Comparison

Related Codes Comparison

When to use each related code

Description
Nonrheumatic aortic stenosis
Bicuspid aortic valve
Aortic sclerosis

Documentation Best Practices

Documentation Checklist
  • Aortic stenosis diagnosis: Document symptom severity.
  • Echocardiogram findings: AS severity (mean gradient, AVA).
  • Nonrheumatic etiology documented, exclude rheumatic fever.
  • Symptoms: dyspnea, angina, syncope. Specify NYHA class.
  • If asymptomatic, document reason for diagnostic testing.

Coding and Audit Risks

Common Risks
  • Unspecified Etiology

    Coding I70.0 without documenting the specific cause (e.g., congenital, degenerative, bicuspid) risks inaccurate severity and treatment reflection.

  • Severity Mismatch

    Documentation must support the stenosis severity (mild, moderate, severe). Mismatched coding impacts quality metrics and reimbursement.

  • Comorbidity Overlap

    Conditions like hypertension (I10) often coexist. Accurate coding of both is crucial for risk adjustment and optimal reimbursement.

Mitigation Tips

Best Practices
  • Thorough documentation of AS symptoms & severity (NYHA)
  • Echo assessment with accurate valve area & peak velocity
  • Correlate echo findings with clinical presentation for diagnosis
  • Avoid coding AS without supporting clinical evidence
  • Regular CDI audits for accurate AS coding & compliance

Clinical Decision Support

Checklist
  • Auscultate for systolic ejection murmur radiating to carotids ICD L80.0
  • Assess for symptoms dyspnea, syncope, angina pectoris ICD I25.5
  • Echocardiogram to assess aortic valve area and mean gradient CPT 93312
  • Review patient history for risk factors hypertension, high cholesterol

Reimbursement and Quality Metrics

Impact Summary
  • Nonrheumatic Aortic Stenosis reimbursement hinges on accurate ICD-10-CM coding (I35.0) and appropriate supporting documentation for optimal payer payments.
  • Quality metrics for Nonrheumatic Aortic Stenosis impact hospital reporting on timely diagnosis, treatment strategies, and patient outcomes.
  • Coding accuracy for I35.0, echocardiogram findings, and procedural codes directly affects MS-DRG assignment and hospital reimbursement.
  • Timely and accurate documentation of Nonrheumatic Aortic Stenosis severity influences quality reporting and potential value-based payments.

Streamline Your Medical Coding

Let S10.AI help you select the most accurate ICD-10 codes for . Our AI-powered assistant ensures compliance and reduces coding errors.

Quick Tips

Practical Coding Tips
  • Code I35.0 for nonrheumatic aortic stenosis
  • Document stenosis severity for accurate coding
  • Specify cause if known, e.g., congenital
  • Query physician for clarity if documentation vague
  • Consider combination codes for other conditions

Documentation Templates

Patient presents with symptoms suggestive of nonrheumatic aortic stenosis, including exertional dyspnea, angina pectoris, and syncope.  Physical examination reveals a harsh systolic ejection murmur best heard at the right second intercostal space radiating to the carotids.  Diminished and delayed carotid pulses are also noted.  The patient's medical history includes hypertension and hyperlipidemia.  Electrocardiogram shows left ventricular hypertrophy.  Transthoracic echocardiogram confirms the diagnosis of nonrheumatic aortic stenosis, demonstrating a peak aortic valve velocity greater than 4.0 m/s, a mean aortic valve gradient greater than 40 mmHg, and a reduced aortic valve area.  Assessment includes severe symptomatic nonrheumatic aortic valve stenosis.  Differential diagnosis considered calcific aortic stenosis, congenital bicuspid aortic valve, and degenerative aortic valve disease.  Plan includes discussion of aortic valve replacement surgery,  optimal medical therapy for symptom management including diuretics for volume overload, and close follow-up to monitor disease progression. Patient education provided regarding the risks and benefits of aortic valve replacement and the importance of medication adherence.  ICD-10 code I35.0, aortic valve stenosis, is documented.  CPT codes for evaluation and management services will be determined based on the complexity of the encounter.
Nonrheumatic Aortic Stenosis - AI-Powered ICD-10 Documentation