I66.1 is the ICD-10 code for Occlusion and stenosis of anterior 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
I66.1 in national editions
Countries report with their own edition of ICD-10. Most keep the WHO code and add more specific codes beneath it.
I66.1Okklusjon eller stenose av arteria cerebri anterior
DI661Okklusion eller stenose af arteria cerebri anterior uden hjerneinfarkt
- DI661AOkklusion af arteria cerebri anterior uden hjerneinfarkt
- DI661BStenose af arteria cerebri anterior uden hjerneinfarkt
I66.1Aivoinfarktia aiheuttamaton etumaisen aivovaltimon tukkeuma tai ahtauma
I66.1Verschluss und Stenose der A. cerebri anterior
I66.1Occlusion et sténose de l'artère cérébrale antérieure
I66.1occlusie en stenose van arteria cerebri anterior
Listed through more specific codes:
- I66.11Occlusion and stenosis of right anterior cerebral artery
- I66.12Occlusion and stenosis of left anterior cerebral artery
- I66.13Occlusion and stenosis of bilateral anterior cerebral arteries
- I66.19Occlusion and stenosis of unspecified anterior 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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