Wiki dx 850's category in icd9 book

tarab524

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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"
 
what version of the book do you have? The only 850 that is a 5 digit code is 850.11 or 850.12, all other 850 codes are specific at the 4th digit.
 
It must be a mistake from the publisher you have, no idea without seeing it. I use Channel version. Maybe call the publisher and inquire or ask others with a yet different publisher. Who is the publisher of your book?
 
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