AHA Coding Clinic® for ICD-10-CM and ICD-10-PCS - 2020 Issue 4; New/Revised ICD-10-CM Codes

Measurement of Intracranial Arterial Flow

In table 4A0, Physiological Systems, Measurement, existing qualifier D Intracranial, has been applied to the Body System Arterial, the external approach, and the function value Flow. This change will identify the use of non-invasive techniques for measuring cerebral artery flow/occlusion, such as software that analyzes computed tomography angiogram (CTA) of the head and neck for large vessel occlusion (LVO). Body System Approach Function/Device Qualifier 3 Arterial X External 5 Flow D Intracranial For example, ContaCT is a radiological computer-assisted triage and notification software system that analyzes CTA brain images and sends notifications to a neurovascular specialist(s) when a suspected...

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