Wiki Help with diagnosis coding diabetes

[patoles@hotmail.com]

How would you code Diabetes Mellitus coma due to malignant neoplasm of the pancreatic duct? I saw this on a test. Would you code 249.30, 157.3 or the other way around 157.3, 249.30? What is the reasoning for your decision? Thank you

 

[MsGarner69]

I would code 249.30, 157.3 because the neoplasm is what caused the diabetic coma so it should be sequenced second.

 

[mitchellde]

read the diagnosis guidelines for secondary diabetes and sequencing. ICD-9 is different from ICD-10 on this.