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ICD-10-CM · I70.213GeneralSystemic

Aortoiliac Occlusive Disease

Understanding Aortoiliac Occlusive Disease (Aortoiliac Disease, Leriche Syndrome): Find information on diagnosis, treatment, and clinical documentation for Aortoiliac Occlusive Disease. This resource covers medical coding, healthcare guidelines, and relevant terms for Aortoiliac Disease and Leriche Syndrome. Learn about symptoms, diagnostic criteria, and management strategies for Aortoiliac Occlusive Disease from a clinical perspective.

Also known as
Aortoiliac DiseaseLeriche Syndrome
Definition

Narrowing or blockage of the aorta and iliac arteries, reducing blood flow to the legs and pelvis.

Clinical signs

Leg pain (claudication), buttock pain, erectile dysfunction, absent femoral pulses.

Common settings

Vascular surgery clinics, cardiology, interventional radiology.

Related Codes

ICD-10 Code Families

Complete code families applicable to I70.213

I70-I79
Diseases of arteries, arterioles and capillaries
I70.2
Atherosclerosis of aorta
I73.9
Peripheral vascular disease, unspecified
Code Comparison

When to use each related code

DescriptionWhen to use
Peripheral artery disease affecting the aorta and iliac arteries.Use for blockage or narrowing in aorta and/or iliac arteries causing lower limb symptoms.
Peripheral artery disease affecting lower extremities, excluding aorta/iliac.Use for blockage or narrowing below the inguinal ligament causing leg pain, ulcers, etc. Exclude aortoiliac involvement.
Chronic, progressive narrowing of abdominal aorta and its branches.Use for chronic, inflammatory thickening of abdominal aorta/branches. Often in young women, with elevated ESR.
Documentation

Best-practice checklist

  • Document location, severity, and laterality of aortoiliac occlusion.
  • Specify Leriche syndrome if classic triad present (claudication, impotence, absent femoral pulses).
  • Record ABI measurements and imaging findings (e.g., CTA, MRA).
  • Note symptoms: claudication, rest pain, erectile dysfunction.
  • Detail treatment plan: conservative management, intervention, or surgery.
Coding & Audit Risks

Common pitfalls to avoid

Code Specificity

Aortoiliac disease may involve different segments. Coding should specify the location (e.g., aorta, iliac arteries) for accurate reimbursement.

Clinical Validation

Leriche syndrome requires confirming characteristic symptoms. Documentation must support the diagnosis to avoid clinical validation denials.

Laterality Documentation

If disease impacts one side, document laterality (right, left, bilateral). Missing laterality can lead to coding errors and claim rejections.

Mitigation

Best-practice tips

  • 01Document claudication symptoms, ABI scores for ICD-10 I70.2
  • 02Capture Leriche triad for improved CDI, HCC coding accuracy
  • 03Specify disease location (aorta, iliac) in operative reports
  • 04Code comorbidities like hypertension, diabetes with I70.2
  • 05Review medical necessity for interventions, ensure compliance
Clinical Decision Support

Step-by-step checklist

  1. 1

    Verify diminished femoral pulses (ICD-10 I70.2)

  2. 2

    Confirm claudication symptoms in buttocks, thighs (SNOMED CT 440.2)

  3. 3

    Check for erectile dysfunction, impotence (ICD-10 N52.9)

  4. 4

    Assess ankle-brachial index ABI < 0.9 (LOINC 44814-3)

Documentation Template

Ready-to-paste narrative

Patient presents with symptoms suggestive of aortoiliac occlusive disease (AIOD), also known as aortoiliac disease or Leriche syndrome.  The patient reports intermittent claudication characterized by pain, cramping, or fatigue in the buttocks, thighs, and calves during exercise, relieved by rest.  Physical examination reveals diminished or absent femoral pulses, cool lower extremities, and potential signs of lower extremity ischemia such as pallor or dependent rubor.  The patient's medical history includes risk factors for atherosclerosis, such as hypertension, hyperlipidemia, smoking, and diabetes.  Differential diagnoses include lumbar spinal stenosis, peripheral neuropathy, and popliteal artery disease.  Diagnostic workup may include ankle-brachial index (ABI) measurement, duplex ultrasonography of the aortoiliac arteries, computed tomography angiography (CTA), or magnetic resonance angiography (MRA) to assess the degree of arterial stenosis or occlusion.  Treatment options for aortoiliac occlusive disease include lifestyle modifications such as smoking cessation, supervised exercise therapy, and pharmacologic management with antiplatelet agents and statins.  For significant stenosis or occlusion, interventions such as percutaneous transluminal angioplasty (PTA) with or without stenting, or aortofemoral bypass surgery may be considered.  The patient was counseled on the importance of risk factor modification and follow-up care.  Further evaluation and management will be based on the results of diagnostic imaging and the patient's response to initial therapy.  ICD-10 code I70.20, atherosclerotic occlusion of aorta, unspecified, and CPT codes for relevant diagnostic and therapeutic procedures will be documented accordingly.
FAQs

Common questions and answers

What are the key differentiating diagnostic features between aortoiliac occlusive disease and other causes of lower extremity claudication in older adults?+

Differentiating aortoiliac occlusive disease (AIOD, also known as Leriche syndrome) from other causes of lower extremity claudication, such as lumbar spinal stenosis or peripheral artery disease (PAD) isolated to the femoropopliteal segment, requires a thorough clinical assessment. In AIOD, claudication pain often involves the buttocks, hips, and thighs, a symptom less common in other conditions. Absent or diminished femoral pulses are a hallmark of AIOD, while patients with spinal stenosis typically have normal pulses. Furthermore, patients with AIOD may experience erectile dysfunction (Leriche syndrome triad), a symptom not typically associated with other forms of claudication. Advanced imaging studies, like CT angiography or MR angiography, are crucial for confirming the diagnosis and delineating the extent of the occlusion. Explore how different imaging modalities can aid in differentiating these conditions and guiding treatment decisions.

How do I effectively manage a patient with aortoiliac occlusive disease and comorbidities like diabetes and hypertension, considering both medical and surgical treatment options?+

Managing a patient with aortoiliac occlusive disease (AIOD) and comorbidities like diabetes and hypertension requires a multidisciplinary approach. Aggressive risk factor modification is paramount, including optimizing blood pressure and glycemic control, promoting smoking cessation, and managing dyslipidemia. Initial medical therapy typically involves antiplatelet agents and medications to address claudication symptoms, such as cilostazol. For patients with lifestyle-limiting claudication or critical limb ischemia, surgical intervention, such as aortoiliac endarterectomy, bypass grafting, or percutaneous transluminal angioplasty (PTA), may be necessary. The choice between these procedures depends on the patient's overall health, the extent and location of the occlusion, and anatomical considerations. Consider implementing a collaborative care pathway involving vascular specialists, endocrinologists, and other relevant specialists to personalize the treatment strategy. Learn more about the latest evidence-based guidelines for managing AIOD in patients with complex comorbidities.

What are the best practices for post-operative care and long-term surveillance following aortoiliac occlusive disease interventions like endovascular repair or bypass surgery?+

Post-operative care for aortoiliac occlusive disease (AIOD) interventions focuses on optimizing graft or stent patency and preventing complications. This includes rigorous monitoring for bleeding, infection, and thrombosis. Patients are generally prescribed antiplatelet or anticoagulant therapy, and regular duplex ultrasound surveillance is essential to detect restenosis or graft occlusion. Long-term management involves continued risk factor modification, including strict blood pressure and lipid control, smoking cessation, and regular exercise to promote collateral circulation. Patient education regarding lifestyle modifications and medication adherence is crucial. Explore the development of patient-centered follow-up protocols that emphasize ongoing surveillance, risk factor management, and prompt intervention for any signs of recurrent disease.

Clinical accuracy: This information is provided for documentation and coding guidance and should not replace professional medical judgment.

Coding standard: ICD-10-CM, current FY guidelines.