Grade Pathological - Standard

Notes

Note 1: Grade Pathological must not be blank.

Note 2: Assign the highest grade from the primary tumor.

Note 3: If there are multiple tumors with different grades abstracted as one primary, code the highest grade.

Note 4: Use the grade from the clinical work up from the primary tumor in different scenarios based on behavior or surgical resection

  • Behavior
    • Tumor behavior for the clinical and the pathological diagnoses are the same AND the clinical grade is the highest grade
    • Tumor behavior for clinical diagnosis is invasive, and the tumor behavior for the pathological diagnosis is in situ
  • Surgical Resection
    • Surgical resection is done of the primary tumor and there is no grade documented from the surgical resection
    • Surgical resection is done of the primary tumor and there is no residual cancer
  • No surgical resection
    • Surgical resection of the primary tumor has not been done, but there is positive microscopic confirmation of distant metastases during the clinical time frame

Note 5: Code 9 (unknown) when

  • Grade from primary site is not documented
  • Surgical resection is done after neoadjuvant therapy and grade from the primary site is not documented and there is no grade from the post therapy clinical work up
  • Surgical resection is done after neoadjuvant therapy and there is no residual cancer and there is no grade from the post therapy clinical work up
  • No resection of the primary site (see exception in Note 4, Surgical resection, last bullet)
  • Neo-adjuvant therapy is followed by a resection (see Grade Post Therapy Path (yp))
  • Grade checked “not applicable” on CAP Protocol (if available) and no other grade information is available
  • Clinical case only (see Grade Clinical)
  • There is only one grade available and it cannot be determined if it is clinical, pathological, post therapy clinical or post therapy pathological

Default

9

NAACCR Item

NAACCR #3844

Metadata

SSDI
Code Description
A

Well differentiated

B

Moderately differentiated

C

Poorly differentiated

D

Undifferentiated, anaplastic

9

Grade cannot be assessed; Unknown