ICD-O-3 Histology/behavior, labeled

Source of standard: SEER*Stat recode

Source item name: ICD-O-3 Hist/behavior, labeled

Source item number: Not applicable

This variable indicates each ICD-O-3 histology code and behavior code and the respective name of that histology and behavior.

Considerations for Use

  • This variable is a five-digit ICD-O-3 morphology code. The first four digits indicate the histology (cell type), and the fifth digit is the behavior code.
  • Please note that the ICD-O-3 morphology codes have been grouped by major morphology headings as found in the International Classification of Diseases for Oncology, Third Edition in the frequency tables shown below. However, the morphology codes are not grouped in the database.