International Neuroblastoma Pathology Classification (INPC)
Shimada Classification, Unfavorable histology or Favorable histology
Notes
**Note 1:** This SSDI is effective for diagnosis years 2023+
* For cases diagnosed 2018-2022, leave this SSDI blank
**Note 2:** Physician statement of unfavorable vs favorable histology can be used to code this data item when no other information is available.
**Note 3:** The International Neuroblastoma Pathology Prognostic Classification (INPC) (unfavorable versus favorable histology) is a biologically relevant classification based on morphologic features of neuroblastic tumors which has prognostic indications. It is based on the following criteria.
* Age
* Neuroblastic maturation
* Schwannian stromal content
* Mitosis-kayorrhexis index (MKI)
* Degree of differentiation (grade)
Metadata
SSDI
| Code |
Description |
| 0 |
Unfavorable |
| 1 |
Favorable |
| 7 |
Test ordered, results not in chart |
| 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
Cannot be determined by pathologist
International Neuroblastoma Pathology Prognostic Classification (INPC) not assessed or unknown if assessed |
| <BLANK> |
N/A - Diagnosis year is prior to 2023 |
(1) American Society of Clinical Oncology © 2009, The International Neuroblastoma Risk Group (INRG) Classification System: AN INRG Task Force Report; published by American Society of Clinical Oncology, 2009
