Question New CKD3 codes

mnuhfer04

Networker
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North Tonawanda, NY
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I'm trying to better understand what the difference is between the new codes N18.31 and N18.32 (stage 3a and 3b). I have looked in the new 2021 book and the guidelines, but I can't find anything. Maybe I'm missing something. Would someone be able to explain this to me? Thanks!
 

trarut

Expert
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Location
Columbus, OH
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Keep in mind that it is the physician's responsibility to identify if a patient is Stage 3a or 3b. You cannot and should not make that determination on your own - that would be diagnosing a patient and it outside your scope as a coder.

These two links provide good explanations of the stages of CKD, including the differentiation between 3a and 3b:
 
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