2025 ICD-10-CM Diagnosis Code C83.0

Small cell B-cell lymphoma

C83.0 should not be used for reimbursement purposes as there are multiple codes below it that contain a greater level of detail.
The 2025 edition of ICD-10-CM C83.0 became effective on October 1, 2024.
This is the American ICD-10-CM version of C83.0 – other international versions of ICD-10 C83.0 may differ.

Applicable To

Type 1 Excludes

The following code(s) above C83.0 contain annotation back-references

that may be applicable to C83.0:

Clinical Information

A b-cell non-hodgkin lymphoma composed of small lymphocytes which surround and replace the splenic white pulp germinal centers. It involves the spleen and splenic hilar lymph nodes, bone marrow, and often the peripheral blood. When lymphoma cells are present in the peripheral blood, they are usually, but not always, characterized by the presence of short polar villi. Patients present with splenomegaly and the clinical course is indolent. (who)
A clonal neoplasm of small b-lymphocytes, lymphoplasmacytoid cells, and plasma cells involving the bone marrow, lymph nodes, and the spleen. The majority of patients have a serum igm paraprotein.
A malignant neoplasm composed of lymphocytes (b-cells), lymphoplasmacytoid cells, and plasma cells.
A primary nodal b-cell non-hodgkin lymphoma which morphologically resembles lymph nodes involved by marginal zone lymphomas of extranodal or splenic types, but without evidence of extranodal or splenic disease. This is a rare entity, and most patients present with localized or generalized lymphadenopathy. The clinical course is indolent. (who, 2001)
An indolent (slow-growing) type of non-hodgkin lymphoma marked by abnormal levels of igm antibodies in the blood and an enlarged liver, spleen, or lymph nodes.

Code History

2016 (effective 10/1/2015): New code (first year of non-draft ICD-10-CM)
2017 (effective 10/1/2016): No change
2018 (effective 10/1/2017): No change
2019 (effective 10/1/2018): No change
2020 (effective 10/1/2019): No change
2021 (effective 10/1/2020): No change
2022 (effective 10/1/2021): No change
2023 (effective 10/1/2022): No change
2024 (effective 10/1/2023): No change
2025 (effective 10/1/2024): No change

Code annotations containing back-references to C83.0:

Diagnosis Index entries containing back-references to C83.0: