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v1.0.0
ICD-10 Guide
DiagnosesRenal Artery Stenosis

Renal Artery Stenosis

ICD-10 Coding for Renal Artery Stenosis(I70.1, Q27.1)

PRIMARY SPECIALTYCardiology
COMPLEXITYHigh
LAST UPDATED09/15/2025
Sam Tuffun, PT, DPT
Physical Therapist | Medical Coding & Billing Contributor

Diagnosis Overview

What is Renal Artery Stenosis?
Essential facts and insights about Renal Artery Stenosis

Key Clinical Considerations:

  • Hypertension resistant to treatment
  • Flank pain or abdominal pain
  • Decreased renal function or acute kidney injury

Clinical Information

Clinical Criteria & Documentation Requirements

  • Patient history of hypertension and renal function tests
  • Use of terms like 'stenosis', 'narrowing', or 'occlusion'
  • Examples include: 'Patient presents with resistant hypertension and imaging shows renal artery stenosis.'

Coding Guidelines

Usage Guidelines & Examples

  • Follow guidelines for distinguishing between primary and secondary hypertension.
  • Common errors include misclassifying the cause of hypertension.

Code Exclusions

Important Exclusions

  • Acute renal failure not due to stenosis
  • Alternative codes for other causes of hypertension

Related ICD-10 Codes

Primary Codes
I70.1
Atherosclerosis of renal artery
I15.0
Secondary hypertension due to renal artery stenosis
Ancillary Codes
I12.9
Differential Codes
Q27.1
I70.1

Related CPT Codes

CPT codes will be available in a future update.

Specialty Focus

Primary Specialty

Cardiology

Specialty Applications

  • Patients with chronic kidney disease or resistant hypertension
  • Cardiology and nephrology clinical settings

Coding Complexity

High Complexity

This diagnosis requires careful attention to:

  • Comprehensive clinical documentation
  • Accurate code selection based on clinical criteria
  • Proper exclusion considerations
  • Specialty-specific coding guidelines

Documentation

Documentation Templates

Billing Information

Billing Considerations

  • Ensure proper documentation for billing
  • Verify code specificity requirements
  • Check for any additional codes needed
  • Review payer-specific guidelines

Common Issues

  • Insufficient clinical documentation
  • Incorrect code selection
  • Missing supporting diagnoses
  • Timing and frequency documentation

Frequently Asked Questions

Documentation requirements?

Document all relevant clinical findings, imaging results, and treatment responses.

Billing considerations?

Ensure accurate coding to reflect the severity and cause of hypertension.