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ICD-10 Coding for Subclavian Stenosis(I77.1, I70.8)

Complete ICD-10-CM coding and documentation guide for Subclavian Stenosis. Includes clinical validation requirements, documentation requirements, and coding pitfalls.

Also known as:

Subclavian Artery StenosisStenosis of Subclavian Artery

Related ICD-10 Code Ranges

Complete code families applicable to Subclavian Stenosis

I70-I79Primary Range

Diseases of arteries, arterioles and capillaries

This range includes codes for stenosis and atherosclerosis affecting arteries, including the subclavian artery.

Code Comparison: When to Use Each Code

Compare key differences between these codes to ensure accurate selection

CodeDescriptionWhen to UseKey Documentation
I77.1Stricture of arteryUse when stenosis is confirmed and etiology is not specified as atherosclerosis.
  • Doppler ultrasound showing PSV ≥230 cm/s
  • Angiography confirming ≥50% diameter reduction
I70.8Atherosclerosis of other arteriesUse when stenosis is due to atherosclerosis.
  • Imaging confirmation of plaque
  • Clinical symptoms consistent with atherosclerosis

Clinical Decision Support

Always review the patient's clinical documentation thoroughly. When in doubt, choose the more specific code and ensure documentation supports it.

Key Information: ICD-10 code for subclavian stenosis

Essential facts and insights about Subclavian Stenosis

The ICD-10 code for subclavian stenosis is I77.1, used when the etiology is not specified as atherosclerosis.

Primary ICD-10-CM Codes for subclavian stenosis

Stricture of artery
Billable Code

Decision Criteria

clinical Criteria

  • Stenosis confirmed by imaging without specified etiology.

Applicable To

  • Stenosis of artery

Excludes

  • Atherosclerosis (I70.-)

Clinical Validation Requirements

  • Doppler ultrasound showing PSV ≥230 cm/s
  • Angiography confirming ≥50% diameter reduction

Code-Specific Risks

  • Risk of undercoding if atherosclerosis is present but not documented.

Coding Notes

  • Ensure documentation specifies laterality even if the code does not.

Differential Codes

Alternative codes to consider when ruling out similar conditions to the primary diagnosis.

Atherosclerosis of other arteries

I70.8
Use when stenosis is due to atherosclerosis.

Stricture of artery

I77.1
Use when atherosclerosis is not specified.

Documentation & Coding Risks

Avoid these common documentation and coding issues when documenting Subclavian Stenosis to ensure proper reimbursement, maintain compliance, and reduce audit risk. These guidelines are particularly important when using ICD-10 code I77.1.

Impact

Clinical: May affect treatment decisions., Regulatory: Non-compliance with documentation standards., Financial: Potential for denied claims.

Mitigation Strategy

Use templates that prompt for laterality.

Impact

Reimbursement: Incorrect sequencing may affect reimbursement., Compliance: Non-compliance with ICD-10 guidelines., Data Quality: Impacts accuracy of clinical data.

Mitigation Strategy

Query provider for etiology to determine if I70.8 should be primary.

Impact

Incorrect sequencing of codes for atherosclerotic stenosis.

Mitigation Strategy

Regular training on ICD-10 guidelines and updates.

Documentation errors, coding pitfalls, and audit risks are interconnected aspects of medical coding and billing. Addressing all three areas helps ensure accurate coding, optimal reimbursement, and regulatory compliance.

Frequently Asked Questions

Common questions about ICD-10 coding for Subclavian Stenosis, with expert answers to help guide accurate code selection and documentation.

Documentation Templates for Subclavian Stenosis

Use these documentation templates to ensure complete and accurate documentation for Subclavian Stenosis. These templates include all required elements for proper coding and billing.

Atherosclerotic subclavian stenosis

Specialty: Vascular Surgery

Required Elements

  • Laterality
  • Etiology
  • Hemodynamic impact
  • Imaging findings
  • Symptoms

Example Documentation

80% atherosclerotic stenosis of left subclavian artery confirmed by CT angiography (PSV 280 cm/s, EDV 90 cm/s). BP differential: Left arm 85/60 vs. right arm 150/90 mmHg. Associated vertigo and left arm claudication.

Examples: Poor vs. Good Documentation

Poor Documentation Example
Subclavian stenosis
Good Documentation Example
Left subclavian artery stenosis due to atherosclerosis, confirmed by Doppler ultrasound showing PSV 250 cm/s and angiography revealing 80% stenosis.
Explanation
The good example specifies laterality, etiology, and includes diagnostic confirmation.

Need help with ICD-10 coding for Subclavian Stenosis? Ask your questions below.

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