AHA Coding Clinic® for ICD-10-CM and ICD-10-PCS - 2023 Issue 1; Ask the Editor

Rotational Vertebral Artery Syndrome/Mechanical Vertebral Arteriopathy

A seven-year-old child who has experienced recurrent strokes secondary to C1-C4 rotational vertebral artery syndrome (mechanical rotational arteriopathy), also known as Bow Hunter’s syndrome, presents for management of the condition. Bow Hunter’s syndrome refers to vertebro-basilar insufficiency caused by mechanical compression of the vertebral arteries when the head is turned to the side. Per the Alphabetic Index at “Syndrome, vertebral, artery, compression, see Syndrome, anterior, spinal artery, compression, cervical, one is directed to code M47.012, Anterior spinal artery compression syndromes, cervical region. Alternatively, at Compression, vertebral artery, cervical, one is directed to code M47.022, Vertebral artery compression syndromes, cervical region. In addition, Insufficiency, arterial, vertebral, directs to code G45.0, Vertebro-basilar artery syndrome. What is the appropriate diagnosis code for rotational vertebral artery syndrome? ...

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