I agree with you on this. Strictly speaking, Technically, I77.9 would be most correct if the specific nature of the disease of the arteries is not specified. However, in my experience, the term 'carotid artery disease' is usually interpreted to mean the same thing as 'carotid arteriosclerosis', which also codes to I65.29 with or without documentation of occlusion/stenosis. You may wish to discuss this with your providers to get clarification about what they are documenting.I65.29 is for "Occlusion and stenosis of unspecified carotid artery" . without documentation of occlusion and stenosis in the progress note, how can we go for this code.