Hello,
I have two text files with the following.
textfile:
001 Cholera
001.0 Cholera
001.1 Cholera
001.9 Cholera, unspecified
002 Typhoid
002.0 Typhoid fever
002.1 Typhoid A
002.2 Typhoid B
002.3 Typhoid
002.9 Typhoid , unspecified
And textfile 2:
00100 ANESTHESIA
00147...