Version 25
Data Item #3885: Lymphocytosis

Length: 1
Source of Standard: NAACCR
Section Name: Stage/Prognostic Factors
Year Implemented: 2018
Version Implemented: 18
Record Types: A, M, C, I

XML NAACCR ID: lymphocytosis

Parent XML Element: Tumor

Required Status:

NPCR Collect: . - No recommendations
CoC Collect: RS - Required, site specific
SEER Collect: RS - Required, site specific
CCCR Collect: RS* - Required, site specific; when available

Description:

Lymphocytosis is defined by an excess of lymphocytes in the blood. In staging of Chronic Lymphocytic Leukemia/Small Lymphocytic Lymphoma (CLL/SLL), lymphocytosis is defined as an absolute lymphocyte count (ALC) greater than 5,000 cells/µL.

Rationale:

Lymphocytosis is a prognostic factor required for staging of Chronic Lymphocytic Leukemia/Small Lymphocytic Leukemia (CLL/SLL) in AJCC 8th edition, Chapter 79, Hodgkin and Non-Hodgkin Lymphomas.

Item Data Type:

digits

Allowable Values

0, 1, 5, 6, 7, 9

Codes:

0	Lymphocytosis not present Absolute lymphocyte count = 5,000 cells/µL
1	Lymphocytosis present Absolute lymphocyte count > 5,000 cells/µL
5	Not applicable: Primary site is not C421
6	Lab value unknown, physician states lymphocytosis is present Physician states Rai stage 0-IV
7	Test ordered, results not in chart
9	Not documented in medical record Lymphocytosis not assessed or unknown if assessed No Rai stage is documented in the record and there is no documentation of lymphocytosis

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.

Version 25 Data Item #3885: Lymphocytosis