Appendix A: New Histology Codes for Lymphomas and Leukemias

Appendix A: Histology Codes for Lymphomas and Leukemias

January 1, 2012 Forward

For hematopoietic and lymphoid cases diagnosed January 1, 2012 and forward, use the 2012 Hematopoietic database and manual to abstract hematopoietic cases.

Manual: http://seer.cancer.gov/tools/heme/index.html

Database: http://seer.cancer.gov/seertools/hemelymph

January 1, 2010 to December 31, 2011

For hematopoietic and lymphoid cases diagnosed January 1, 2010 to December 31, 2011, refer to the 2010 Hematopoietic and Lymphoid Neoplasm Case Reportability and Coding Manual and Hematopoietic Database.

January 1, 1998 to December 31, 2009

Leukemia Terms. Effective for cases diagnosed January 1, 1998 to December 31, 2009.

The following rules are to be used. They are in priority order:

Code the FAB (French-American-British) classification. FAB is implied if the description includes "L" or "M" with a number such as "L2" or M5". If more than one FAB classification is listed, use the NOS code. Example:

Path: "Acute myelogenous leukemia, probably M1 or M2...."

Code to 9861/3, Acute myeloid leukemia, NOS

If the diagnostic statement lists a specific acute leukemia cell type, code that term. If more than one term is listed, use rules in ICD-O-2.

In addition to these rules, the following information will assist in assigning codes:

"Maturation" and "differentiation" are synonymous.
Code "acute non-lymphocytic leukemia" as 9861/3, acute myelogenous leukemia, NOS.
Code "acute biphenotypic leukemia" or "mixed lineage leukemias" to 9801/3, acute leukemia, NOS.
Terms equivalent to granulocytic are: myeloblastic, myelocytic, myelogenous, myeloid, non-lymphocytic.
Terms equivalent to lymphocytic are: lymphoblastic, lymphoid, lymphatic.

The codes are:

ICD-O Code	Term
9821/3	Acute lymphoblastic leukemia, L1 type () Acute lymphocytic leukemia, L1 type () Acute lymphoid leukemia, L1 type () Acute lymphatic leukemia, L1 type () Lymphoblastic leukemia, L1 type () FAB L1 ()
9826/3	FAB L3 (*)
9828/3	Acute lymphoblastic leukemia, L2 type Acute lymphocytic leukemia, L2 type Acute lymphoid leukemia, L2 type Acute lymphatic leukemia, L2 type Lymphoblastic leukemia, L2 type FAB L2
9840/3	FAB M6 (*)
9861/3	Acute myeloid leukemia, NOS () Acute myeloblastic leukemia, NOS () Acute granulocytic leukemia, NOS () Acute myelogenous leukemia, NOS () Acute myelocytic leukemia, NOS (*)
9866/3	FAB M3 (*)
9867/3	Acute myelomonocytic leukemia, NOS () FAB M4 ()
9871/3	Acute myelomonocytic leukemia with eosinophils FAB M4E
9872/3	Acute myeloid leukemia, minimal differentiation Acute myeloblastic leukemia, minimal differentiation Acute granulocytic leukemia, minimal differentiation Acute myelogenous leukemia, minimal differentiation Acute myelocytic leukemia, minimal differentiation FAB M0
9873/3	Acute myeloid leukemia without maturation Acute myeloblastic leukemia without maturation Acute granulocytic leukemia, without maturation Acute myelogenous leukemia, without maturation Acute myelocytic leukemia, without maturation FAB M1
9874/3	Acute myeloid leukemia with maturation Acute myeloblastic leukemia with maturation Acute granulocytic leukemia, with maturation Acute myelogenous leukemia, with maturation Acute myelocytic leukemia, with maturation FAB M2
9891/3	FAB M5 () FAB M5A () FAB M5B (*)
9910/3	Megakaryoblastic leukemia, NOS (C42.1) FAB M7

(*) New terms for existing numbers

January 1, 1998 and Forward

Lymphoma Terms. Effective for cases diagnosed January 1, 1995, and after.

ICD-O Code	Term
9673/3	Mantle cell lymphoma (*)
9688/3	T-cell rich B-cell lymphoma
9708/3	Subcutaneous panniculitic T-cell lymphoma
9710/3	Marginal zone lymphoma, NOS
9714/3	Anaplastic large cell lymphoma (ALCL), CD30+ (*)
9715/3	Mucosal-Associated Lymphoid Tissue (MALT) lymphoma
9716/3	Hepatosplenic γδ (gamma - delta) cell lymphoma
9717/3	Intestinal T-cell lymphoma Enteropathy associated T-cell lymphoma

(*) New terms for existing numbers

<< Prev. Next >>