High Risk Histologic Features


**Note 1:** Physician statement of high risk histologic features can be used to code this data item when no other information is available. **Note 2:** High risk histologic features include * Desmoplasia * Poor differentiation (grade 3) * Sarcomatoid differentiation (features) * Undifferentiated (grade 4) **Note 3:** Code the presence or absence of high risk histologic features as documented in the pathology report. **Note 4:** Code 5 if more than one high risk histologic feature is present.




NAACCR #3858


Code Description
0 No high risk histologic features
1 Desmoplasia
2 Poor differentiation (grade 3)
3 Sarcomatoid differentiation
4 Undifferentiated (grade 4)
5 Multiple high risk histologic features
6 Histologic features, NOS (type of high risk histologic feature not specified)
8 Not applicable: Information not collected for this case (If this information is required by your standard setter, use of code 8 may result in an edit error)
9 Not documented in medical record High risk histologic features not assessed or unknown if assessed