Data Last Updated: June 9, 2025

NAACCR Item #3898: Number of Cores Positive

Item # Length Source of Standard Section Name Year Implemented Version Implemented XML NAACCR ID Parent XML Element
3898 2 NAACCR Stage/Prognostic Factors 2018 18 numberOfCoresPositive 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 positive cores documented in the pathology report from needle biopsy of the prostate gland.
Rationale
Number of Cores Positive is a Registry Data Collection Variable for AJCC. This data item was previously collected as Prostate, CS SSF# 12.
Allowable Values
00, 01-99, X1, X6, X7, X8, X9
Codes
Code Description
00 All examined cores negative
01-99 1 - 99 cores positive (Exact number of cores positive)
X1 100 or more cores positive
X6 Biopsy cores positive, 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 Positive 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.