Exercise #6
The final pathologic diagnosis for a procedure performed on January 2, 2004 was well-differentiated pituitary adenoma.
Reportability
Show Answer
Reportable: Yes
Primary site: C75.1 pituitary gland
Histology: 8272/09 pituitary adenoma NOS
Well differentiated pituitary adenoma is an intracranial non-malignant tumor diagnosed after January 1, 2004. The 6th digit of the histology code is 9 even though the tumor is described as well-differentiated because the grade code for all non-malignant tumors 9. The reference is ICD-O-3, page 30, Rule G, paragraph 1 - "Only malignant tumors are graded."
