I66.0 is the ICD-10 code for Occlusion and stenosis of middle cerebral artery. It is a four-character subcategory of I66 (Occlusion and stenosis of cerebral arteries, not resulting in cerebral infarction), the most specific level in the WHO edition. It belongs to the block I60–I69 (Cerebrovascular diseases) in Chapter IX, Diseases of the circulatory system.
- Code type
- Subcategory (4 characters)
- Chapter
- IX · I00–I99
- Classification
- WHO ICD-10, 2019 version
I66.0 in national editions
Countries report with their own edition of ICD-10. Most keep the WHO code and add more specific codes beneath it.
I66.0Okklusjon eller stenose av arteria cerebri media
DI660Okklusion eller stenose af arteria cerebri media uden hjerneinfarkt
- DI660AOkklusion af arteria cerebri media uden hjerneinfarkt
- DI660BStenose af arteria cerebri media uden hjerneinfarkt
I66.0Aivoinfarktia aiheuttamaton keskimmäisen aivovaltimon tukkeuma tai ahtauma
I66.0Verschluss und Stenose der A. cerebri media
I66.0Occlusion et sténose de l'artère cérébrale moyenne
I66.0occlusie en stenose van arteria cerebri media
Listed through more specific codes:
- I66.01Occlusion and stenosis of right middle cerebral artery
- I66.02Occlusion and stenosis of left middle cerebral artery
- I66.03Occlusion and stenosis of bilateral middle cerebral arteries
- I66.09Occlusion and stenosis of unspecified middle cerebral artery
Based on the World Health Organization’s International Statistical Classification of Diseases and Related Health Problems, 10th revision (ICD-10), 2019 version, and the national editions published by each country’s health authority. This page is a reference, not coding advice; follow your national coding rules when you report.
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