AHA Coding Clinic® for ICD-10-CM and ICD-10-PCS - 2022 Issue 1; Ask the Editor
Acute Right Posterior Inferior Cerebral Artery Infarction
A patient presented to the hospital with complaints of dizziness with nausea and vomiting. Magnetic resonance imaging (MRI) of the head demonstrated a large right posterior inferior cerebral artery (PICA) infarction with no evidence of cerebral artery occlusion or high-grade stenosis and PICA origin is patent. Following diagnostic imaging, the provider’s diagnostic statement listed, “Right posterior inferior cerebral artery (PICA) infarction.” What is the appropriate ICD-10-CM code for an acute right PICA infarction when the location of the infarction is identified, without evidence of occlusion, stenosis, embolism or thrombus? ...
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Article Overview
This short coding article explains the ICD-10-CM assignment for a stroke-related diagnosis involving a specifically documented cerebral artery territory. It is aimed at coders, CDI specialists, and clinical documentation staff who need to understand how the documented location and imaging findings affect code selection in the absence of vessel blockage or similar vascular findings.
Why This Topic Matters
Stroke-related diagnoses often depend on the exact artery territory and the vascular findings documented in the record. Correct interpretation of the documentation supports accurate ICD-10-CM reporting and consistent clinical data capture.
What You Will Learn
- How this infarction scenario is framed for ICD-10-CM coding
- What documentation elements are relevant to the diagnosis
- How the article approaches a location-specific cerebral infarction without additional vascular findings
- The type of ICD-10-CM code referenced for this scenario
Who Should Read This
- Medical coders
- Clinical documentation improvement specialists
- Health information management professionals
- Billing staff
- Audit and compliance reviewers
Codes Discussed
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