Hepatosplenic T-cell lymphoma
- C86.1 should not be used for reimbursement purposes as there are multiple codes below it that contain a greater level of detail.
- ICD-10-CM C86.1 is a new 2025 ICD-10-CM code that became effective on October 1, 2024.
- This is the American ICD-10-CM version of C86.1 – other international versions of ICD-10 C86.1 may differ.
Applicable To
- Alpha-beta and gamma delta types
The following code(s) above C86.1 contain annotation back-references
that may be applicable to C86.1:
- C00-D49 Neoplasms
- C81-C96 Malignant neoplasms of lymphoid, hematopoietic and related tissue
- C86 Other specified types of T/NK-cell lymphoma
Approximate Synonyms
- Lymphoma, hepatosplenic t-cell
Clinical Information
- An extranodal, mature t-cell non-hodgkin lymphoma that originates from cytotoxic t-cells, usually of gamma/delta t-cell type. It is characterized by the presence of medium-size neoplastic lymphocytes infiltrating the hepatic sinusoids. A similar infiltrating pattern is also present in the spleen and bone marrow that are usually involved at the time of the diagnosis.
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): Deleted code
- 2025 (effective 10/1/2024): New code
Diagnosis Index entries containing back-references to C86.1: