Where used:
| Data Element | ICD-O CODE | references in description ICD-O CODE |
| Data Element | MORPHOLOGY (ICD-O AT START SYSTEMIC ANTI-CANCER THERAPY) | references in description ICD-O CODE |
| Data Element | MORPHOLOGY (ICD-O) | references in description ICD-O CODE |
| Data Element | TOPOGRAPHY (ICD-O) | references in description ICD-O CODE |