Search Database ICD-O-3 Code Lists

Name

Prolymphocytic leukemia, NOS

ICD-O-1 Morphology

9825/3: Prolymphocytic leukemia
Effective 1978 - 1991

ICD-O-2 Morphology

9825/3: Prolymphocytic leukemia
Effective 1992 - 2000

ICD-O-3 Morphology

9832/3: Prolymphocytic leukemia, NOS
Effective 2001 and later

Reportable

for cases diagnosed 1978 and later

Primary Site(s)

C421

Coding Manual: Hematopoietic Coding Manual (PDF)

Abstractor Notes

Patients typically have systemic involvement at presentation, with bone marrow and peripheral blood involvement as well as hepatosplenomegaly, generalized lymphadenopathy, and skin infiltrates.

Due to the systemic nature of this neoplasm, leukemic cells can be found in peripheral blood, lymph nodes, bone marrow, spleen, liver and skin. A high lymphocyte count (> 100 x 109/L) along with anemia and thrombocytopenia are common findings. HTLV-1 serologies are negative and serum immunoglobins are within normal limits with no paraproteins present

Diagnostic Confirmation

This histology can be determined by positive histology (including peripheral blood) with or without genetics and/or immunophenotyping. Review the Definitive Diagnostic Methods, Immunophenotyping and Genetics Data sections below, and the instructions in the Hematopoietic Manual for further guidance on assigning Diagnostic confirmation.

Grade

Not Applicable

Module Rule

None

Alternate Names

PLL

Definition

General term for non-specific prolymphocytic leukemia (unknown if B-cell or T-cell).
A type of chronic lymphocytic leukemia (CLL), in which too many immature white blood cells (prolymphocytes) are found in the blood and bone marrow.

Definitive Diagnostic Methods

Bone marrow biopsy
Genetic testing
Immunophenotyping
Peripheral blood smear

Genetics Data

inv 14(q11,q32)

Immunophenotyping

CD1a- (no expression/negative)
CD2+ (expression/positive)
CD3+ (expression/positive)
CD4+ (expression/positive)
CD7+ (expression/positive)
CD8- (no expression/negative)
TdT- (no expression/negative)

Treatments

Chemotherapy
Hormone therapy

Transformations to

There are no known transformations

Transformations from

There are no known transformations

Same Primaries

Corresponding ICD-9 Codes

204.8 Other lymphoid leukemia

Corresponding ICD-10 Codes

C91.3 Prolymphocytic leukemia

Corresponding ICD-10-CM Codes (U.S. only)

C91.Z Other lymphoid leukemia (effective October 01, 2015)

Signs and Symptoms

None

Diagnostic Exams

None

Progression and Transformation

None

Epidemiology and Mortality

None

Sources

International Classification of Diseases for Oncology, Third Edition, Second Revision. Geneva: World Health Organization, 2020.
Section: ICD-O-3.2 (2020) Morphological Codes
Pages: http://www.iacr.com.fr/index.php?option=com_content&view=category&layout=blog&id=100&Itemid=577
Glossary