ICD-10 Coding for Aortoiliac Occlusive Disease(I70.23, I70.24)
Complete ICD-10-CM coding and documentation guide for Aortoiliac Occlusive Disease. Includes clinical validation requirements, documentation requirements, and coding pitfalls.
Also known as:
Related ICD-10 Code Ranges
Complete code families applicable to Aortoiliac Occlusive Disease
I70.2-I70.29Primary Range
Atherosclerosis of native arteries of extremities
Primary range for atherosclerotic aortoiliac occlusive disease
Embolism and thrombosis of abdominal aorta
Used when occlusion is due to embolism or thrombosis
Code Comparison: When to Use Each Code
Compare key differences between these codes to ensure accurate selection
| Code | Description | When to Use | Key Documentation |
|---|---|---|---|
| I70.23 | Atherosclerosis of native arteries of extremities, bilateral iliac | Use when atherosclerosis affects bilateral iliac arteries with documented stenosis. |
|
| I70.24 | Atherosclerosis of native arteries of extremities with ulceration | Use when atherosclerosis leads to ulceration in the affected extremities. |
|
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 aortoiliac occlusive disease
Essential facts and insights about Aortoiliac Occlusive Disease
Primary ICD-10-CM Codes for aortoiliac occlusive disease
Decision Criteria
clinical Criteria
- Confirmed atherosclerotic plaques in iliac arteries
documentation Criteria
- Imaging results confirming stenosis
Applicable To
- Bilateral iliac artery stenosis
Excludes
- Embolism and thrombosis of abdominal aorta (I74.09)
Clinical Validation Requirements
- CTA or angiography showing ≥70% stenosis
- ABI ≤0.90
Code-Specific Risks
- Incorrect use without imaging confirmation
Coding Notes
- Ensure documentation specifies atherosclerotic etiology and bilateral involvement.
I70.24 - Atherosclerosis of native arteries of extremities with ulceration
Use when atherosclerosis leads to ulceration in the affected extremities.
Applicable To
- Aortoiliac disease with ulceration
Excludes
- Embolism and thrombosis of abdominal aorta (I74.09)
Clinical Validation Requirements
- Presence of ulceration due to aortoiliac insufficiency
- Imaging showing significant stenosis
Coding Notes
Ensure ulceration is documented and linked to atherosclerotic disease.
Ancillary Codes
Additional codes that should be used in conjunction with the main diagnosis codes when applicable.
Long-term (current) use of anticoagulants
Z79.82Differential Codes
Alternative codes to consider when ruling out similar conditions to the primary diagnosis.
Embolism and thrombosis of abdominal aorta
I74.09Documentation & Coding Risks
Avoid these common documentation and coding issues when documenting Aortoiliac Occlusive Disease to ensure proper reimbursement, maintain compliance, and reduce audit risk. These guidelines are particularly important when using ICD-10 code I70.23.
Impact
Clinical: Inaccurate diagnosis and treatment planning, Regulatory: Non-compliance with coding standards, Financial: Potential reimbursement issues
Mitigation Strategy
Always document whether occlusion is due to atherosclerosis or thrombosis, Include imaging and clinical findings
Impact
Reimbursement: Potential underpayment due to less specific DRG assignment, Compliance: Non-compliance with coding guidelines, Data Quality: Decreased accuracy in clinical data reporting
Mitigation Strategy
Document specific vessels and use I70 codes with appropriate specificity.
Impact
Audits may target cases where vessel involvement is not clearly documented.
Mitigation Strategy
Ensure detailed documentation of all affected vessels and laterality.
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 Aortoiliac Occlusive Disease, with expert answers to help guide accurate code selection and documentation.
Documentation Templates for Aortoiliac Occlusive Disease
Use these documentation templates to ensure complete and accurate documentation for Aortoiliac Occlusive Disease. These templates include all required elements for proper coding and billing.
Aortoiliac Occlusive Disease with Claudication
Specialty: Vascular SurgeryRequired Elements
- Vessel involvement
- ABI values
- Imaging results
- Symptoms and severity
Example Documentation
Examples: Poor vs. Good Documentation
Poor Documentation Example
Good Documentation Example
Explanation
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