Wiki How would you code this?

[az2tn@yahoo.com]

Diagnosis:
Lung, left, core biopsy:
Malignant poorly differentiated necrotic neoplasm.

I'm getting 162.9 but I'm not sure if I should code the necrosis 513.0? Any thoughts?

 

[VickiS]

I use 162.9

 

[JEYCPC]

I agree, use 162.9.