AHA Coding Clinic® for ICD-9 - 1987 March - April
Occlusive Peripheral Vascular Disease
The question is often asked, "How is occlusive peripheral vascular disease coded when there is no evidence of a thrombus or embolus?" Occlusion (occlusive) is defined as either the act of closing or the state of being closed. Occlusive peripheral vascular disease refers to an interference in the arteries or veins or smaller circulatory vessels supplying the extremities. A thrombus, embolus, or infarction may have occluded the blood supply. Or an atherosclerotic narrowing or a vascular stricture may have slowed free-flowing circulation to the extremities. In the Alphabetic Index of ICD-9-CM the following entry Occlusion peripheral arteries 444...
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Article Overview
This premium article addresses occlusive peripheral vascular disease coding concepts in ICD-9-CM, focusing on how the condition is discussed when thrombus, embolus, atherosclerosis, stricture, or other underlying causes are or are not mentioned. It is relevant to coders, auditors, and clinical documentation staff who need to understand the terminology, index references, and the broad diagnostic categories associated with peripheral arterial and venous occlusion.
Why This Topic Matters
Accurate interpretation of peripheral vascular terminology affects code selection and documentation review, especially when the cause of occlusion is not clearly stated. The article helps users understand the ICD-9-CM framework and the types of diagnoses commonly associated with occlusive disease.
What You Will Learn
- How occlusive peripheral vascular disease is discussed in ICD-9-CM terms
- How the article distinguishes arterial and venous occlusive conditions
- What broad diagnostic categories are associated with documented causes of occlusion
- Why documentation of the underlying cause matters in code assignment
Who Should Read This
- Medical coders
- Coding auditors
- Clinical documentation specialists
- Revenue cycle staff
- Healthcare compliance personnel
Codes Discussed
Code Ranges Discussed
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