Data Last Updated: June 9, 2025

NAACCR Item #3882: LN Positive Axillary Level I-II

Item # Length Source of Standard Section Name Year Implemented Version Implemented XML NAACCR ID Parent XML Element
3882 2 NAACCR Stage/Prognostic Factors 2018 18 lnPositiveAxillaryLevel1To2 Tumor
Required Status:

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

Description
This data item pertains to the number of positive ipsilateral level I and II axillary lymph nodes and intramammary lymph nodes based on pathological information.
Rationale
Lymph Nodes Positive Axillary Level I-II can be collected by the surveillance community for breast cancers. Prior to 2018, Breast SSF#3 was used for Lymph Nodes Positive Axillary Level I-II.
Allowable Values
00-99, X1, X5, X6, X8, X9
Codes
Code Description
00 All ipsilateral axillary nodes examined negative
01-99 1 - 99 nodes positive (Exact number of nodes positive)
X1 100 or more nodes positive
X5 Positive nodes, number unspecified
X6 Positive aspiration or needle core biopsy of lymph node(s)
X8 Not applicable: Information not collected for this case (If this item is required by your standard setter, use of code X8 will result in an edit error.)
X9 Not documented in medical record Level I-II axillary nodes 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.