Data Last Updated: June 9, 2025

NAACCR Item #3897: Number of Cores Examined

Item # Length Source of Standard Section Name Year Implemented Version Implemented XML NAACCR ID Parent XML Element
3897 2 NAACCR Stage/Prognostic Factors 2018 18 numberOfCoresExamined Tumor
Required Status:

NPCR Collect: No recommendation
CoC Collect: Required, site specific
SEER Collect: Required, site specific
CCCR Collect: Required, site specific; when available

Description
This data item represents the number of cores examined as documented in the pathology report from needle biopsy of the prostate gland.
Rationale
Number of Cores Examined is a Registry Data Collection Variable for AJCC. This data item was previously collected as Prostate, CS SSF# 13.
Allowable Values
01-99, X1, X6, X7, X8, X9
Codes
Code Description
01-99 1 - 99 cores examined (Exact number of cores examined)
X1 100 or more cores examined
X6 Biopsy cores examined, number unknown
X7 No needle core biopsy performed
X8 Not applicable: Information not collected for this case (If this information is required by your standard setter, use of code X8 may result in an edit error.)
X9 Not documented in medical record Number of cores examined not assessed or unknown if assessed
Code Notes
Each Site-Specific Data Item (SSDI) applies only to selected primary sites, histologies, and years of diagnosis. Depending on applicability and standard-setter requirements, SSDIs may be left blank.