Wiki External cause code required with all injury codes?

dorinda05

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Do all Chapter 20 external cause codes have to be billed with all chapter 19 injury codes?
For example. I know the answer is yes for Sxx.xxA requires the W external cause but what if it is a nonunion followup Sxx.xxG? Is it still required beings it’s not the initial treatment?
 
Per guidelines ICD10 Chapter 20 #2. External cause codes used for length of treatment. Assign the e ternal cause Coder with appropriate 7th character for each encounter for which the injury or condition is being treated.
 
They can still be used but the external cause code will require the 7th character D.

For example a malunion case due to a previous fall with fracture.
1. SXX.XXXG
2. WXX.XXXD

hope this helps!
 
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