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ICD-10 Coding for Iliac Artery Stenosis(I70.8, I70.202)

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

Also known as:

Iliac StenosisAtherosclerosis of Iliac Arteryiliac artery narrowing

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Related ICD-10 Code Ranges

Complete code families applicable to Iliac Artery Stenosis

I70.8Primary Range

Atherosclerosis of other arteries

Used for iliac artery stenosis unless involving extremities.

I70.2

Atherosclerosis of native arteries of extremities

Used if stenosis extends into external iliac/femoral arteries.

Code Comparison: When to Use Each Code

Compare key differences between these codes to ensure accurate selection

CodeDescriptionWhen to UseKey Documentation
I70.8Atherosclerosis of other arteriesUse for isolated iliac artery stenosis not involving extremities.
  • Imaging showing stenosis ≥50%
  • Symptoms of claudication or ischemia
I70.202Atherosclerosis of native arteries of extremities with intermittent claudicationUse if stenosis involves extremities.
  • Claudication symptoms
  • Stenosis involving external iliac/femoral arteries

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 iliac artery stenosis

Essential facts and insights about Iliac Artery Stenosis

The ICD-10 code for iliac artery stenosis is I70.8, used for atherosclerosis of other arteries unless involving extremities.

Primary ICD-10-CM Codes for iliac artery stenosis

I70.8
Atherosclerosis of other arteries
Billable Code

Decision Criteria

clinical Criteria

  • Stenosis confirmed by imaging and symptoms present.

coding Criteria

  • Iliac artery not classified as extremity.

Applicable To

  • Iliac artery stenosis

Excludes

  • Atherosclerosis of extremities (I70.2xx)

Clinical Validation Requirements

  • Imaging showing stenosis ≥50%
  • Symptoms of claudication or ischemia

Code-Specific Risks

  • Misclassification as extremity atherosclerosis

Coding Notes

  • Ensure documentation specifies the exact artery and laterality.
View Full Code Details

Ancillary Codes

Additional codes that should be used in conjunction with the main diagnosis codes when applicable.

Type 2 diabetes with peripheral angiopathy

E11.51
Use if diabetes coexists with PVD.

Differential Codes

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

Atherosclerosis of native arteries of extremities with intermittent claudication

I70.202
Use if stenosis extends to external iliac/femoral arteries.

Atherosclerosis of other arteries

I70.8
Use for isolated iliac artery stenosis.

Documentation & Coding Risks

Avoid these common documentation and coding issues when documenting Iliac Artery Stenosis to ensure proper reimbursement, maintain compliance, and reduce audit risk. These guidelines are particularly important when using ICD-10 code I70.8.

Impact

Clinical: Misrepresentation of the patient's condition, Regulatory: Non-compliance with coding guidelines, Financial: Potential claim denials

Mitigation Strategy

Verify anatomical involvement before coding, Consult coding guidelines for clarification

Impact

Reimbursement: Incorrect coding may lead to denied claims., Compliance: Non-compliance with ICD-10 guidelines., Data Quality: Inaccurate clinical data representation.

Mitigation Strategy

Use I70.8 for iliac artery unless involving extremities.

Impact

Potential for audits due to misclassification as extremity artery.

Mitigation Strategy

Ensure thorough documentation and correct code selection.

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 Iliac Artery Stenosis, with expert answers to help guide accurate code selection and documentation.

Documentation Templates for Iliac Artery Stenosis

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

Stent placement for iliac artery stenosis

Specialty: Vascular Surgery

Required Elements

  • Pre-op diagnosis
  • Procedure details
  • Findings and outcomes

Example Documentation

**Pre-op Diagnosis**: Critical limb ischemia due to 80% stenosis of right common iliac artery (CTA confirmed) **Procedure**: Right common iliac stent placement (7x37mm Express stent) via femoral access **Findings**: Post-stent residual stenosis <10%, ankle-brachial index improved from 0.5 to 0.9 **Code Assignment**: 37221 + I70.8

Examples: Poor vs. Good Documentation

Poor Documentation Example
PVD with leg pain
Good Documentation Example
90% stenosis of left common iliac artery on CTA, Rutherford Category 3 claudication at 100 meters
Explanation
The good example provides specific anatomical details and clinical findings.

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