I have seen them numbered 1-5 with 1 being the thumb and five the pinky on each side. I believe this is the correct "medical" way.
Don't confuse with the modifiers which I always have to double check myself! When I was learning I printed the modifier list with actual finger numbers and added thumb, ring, etc. just for extra help.
View attachment 5751
- F1: Left Hand, Second Digit
- F2: Left Hand, Third Digit
- F3: Left Hand, Fourth Digit
- F4: Left Hand, Fifth Digit
- F5: Right Hand, Thumb
- F6: Right Hand, Second Digit
- F7: Right Hand, Third Digit
- F8: Right Hand, Fourth Digit
- F9: Right Hand, Fifth Digit
- FA: Left Hand, Thumb