C84.97
BillableMature T/NK-cell lymphomas, unspecified, spleen
HCC Category Mapping
V28HCC 20 — Lung and Other Severe Cancers
0.000V24HCC 10 — Lymphoma and Other Cancers
0.675ESRDHCC 10 — Lymphoma and Other Cancers
0.000RxHCCHCC 21 — Hodgkin Lymphoma and Other Cancers
0.000What This Code Means
A mature T-cell or natural killer cell lymphoma affecting the spleen, an organ that filters blood and stores immune cells.
Coding Tips
- •Confirm splenic involvement through imaging, physical examination, or pathology findings
- •Note if splenomegaly (enlarged spleen) is present and documented
Clinical Significance
Mature T/NK-cell lymphomas, unspecified, involving the spleen captures unclassified T/NK-cell lymphoma with splenic involvement. The spleen is a common site for lymphoma involvement and can present with splenomegaly, cytopenias, or incidental imaging findings. Further subtyping is important because specific entities like hepatosplenic T-cell lymphoma have distinct prognoses and treatments.
Documentation Requirements
- ✓Pathology confirming mature T-cell or NK-cell lymphoma in splenic tissue or confirmed by imaging
- ✓Imaging documenting splenic involvement
- ✓Immunophenotyping distinguishing from hepatosplenic T-cell lymphoma
- ✓Documentation of why further subtype classification was not achieved
- ✓Clinical staging
Commonly Confused Codes
C86.1 — Hepatosplenic T-cell lymphoma: A specific entity with gamma-delta phenotype and sinusoidal infiltration; must be excludedC84.47/C84.67/C84.77 — Splenic codes for specific T-cell lymphoma subtypes: Use when subtype is confirmedC84.93 — Mature T/NK-cell lymphoma, intra-abdominal: Spleen has its own code; not an abdominal nodeD73.89 — Other diseases of spleen: Not a neoplastic code
Code Hierarchy
└C84Mature T/NK-cell lymphomas└C84.9Mature T/NK-cell lymphomas, unspecified└C84.97Mature T/NK-cell lymphomas, unspecified, spleen
└C84.97Mature T/NK-cell lymphomas, unspecified, spleen