Value | Code Name | Code | Code System | Code Description |
---|---|---|---|---|
1 | irregularity or banding with no stenosis | irregularity or banding with no stenosis | ||
2 | stenosis, <50% reduction in diameter | stenosis, <50% reduction in diameter | ||
3 | stenosis, >50% reduction in diameter | stenosis, >50% reduction in diameter | ||
4 | occlusion | occlusion | ||
0 | no involvement | no involvement |