Wiki Icd-9 code - I need opinions on how to code

CHAYES

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I need opinions on how to code a diagnosis of POORLY DIFFERENTIATED CARCINOMA OF UNKNOWN PRIMARY. My thinking was to code as 199.1 which is for unknown site or unspecified primary or secondary.

Thanks,

Cindy
 
No, I do not have any sites. The hospital showed colon but all I have is the poorly diff.carcinoma of unknown
 
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