mNIHSS total = the unweighted sum of 11 retained NIHSS items.

Item	Point assignment
1B. Orientation questions	Both correct = 0 One correct = 1 Neither correct = 2
1C. Commands	Both performed = 0 One performed = 1 Neither performed = 2
2. Horizontal gaze	Normal = 0 Partial gaze palsy = 1 Total gaze palsy = 2
3. Visual fields	No visual loss = 0 Partial hemianopia = 1 Complete hemianopia = 2 Bilateral hemianopia or blindness = 3
5A and 5B. Arm motor, each side	No drift = 0 Drift before 10 seconds = 1 Falls before 10 seconds = 2 No effort against gravity = 3 No movement = 4
6A and 6B. Leg motor, each side	No drift = 0 Drift before 5 seconds = 1 Falls before 5 seconds = 2 No effort against gravity = 3 No movement = 4
8. Sensory	Normal = 0 Sensory loss = 1
9. Language	Normal = 0 Mild aphasia = 1 Severe aphasia = 2 Mute or global aphasia = 3
11. Extinction or inattention	Normal = 0 Mild neglect = 1 Severe neglect = 2

The implemented total range is 0–31 points.

Modified NIH Stroke Scale/Score (mNIHSS)