1. moyamoya disease
Collaborative Hypertext of Radiology. progressive obstructive/occlusive cerebral arteritis affecting distal ICA at bifurcation into its branches (ant. 2/3 of circle of Willis) usually involving both hemispheres etiology:
http://chorus.rad.mcw.edu/doc/01076.html

2. Transcript of the October 29, 2003 NCVHS Subcommittee on Standards and Security Hearings -- Unite...
On the other hand, ICD-10-CM renamed the condition, it's non-traumatic subarachnoid hemorrhage, and describes it further as which of the nine specific cerebral arteries the hemorrhage is coming from. ICD-9-CM describes subarachnoid hemorrhage or...
http://www.ncvhs.hhs.gov/031029tr.htm

3. Identifying veterans with acute strokes with high-specificity ICD-9 algorithm with VA automated r...
Codes 430 to 438 and their subcodes are typically used for classification of stroke for epidemiological reporting, administrative, and research purposes [8] Unfortunately, the accuracy of ICD-9 codes assigned to individuals stroke episodes varies...
http://www.rehab.research.med.va.gov/jour/07/44/5/ried.html