djd knee dx

psacco

Networker
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Greater Pittsburgh
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question: report states "DJD left knee"... I have been coding as M17.12, but my supervisor says that is should be M17.9 for unspecified. I disagree, on the thought that it says left knee, and if it does not state either primary or secondary, it defaults to primary.....any help would he appreciated. thank you.
 

mitchellde

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It does not default to primary this must be documented as either osteoarthritis with no known cause or age related osteoarthritis , something along that line. This is why the unspecified option is available.
 
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