tarab524
Networker
Could someone please clarify the 850 section? Dx's 850.0,850.2,850.3,850.4,850.5,850.9 all specify, with a red dot, to use addl digit(s), however it doesn't specify which 5th digit to use, if any. The chart above the 850 category states " fifth-digit to be used with categories 851-854"