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C84.9 - Mature T/NK-cell lymphomas, unspecified


The ICD 10 Code for Mature T/NK-cell lymphomas, unspecified is listed as C84.9.
Additional information concerning this code and description can be found below including ICD 9 crosswalks / GEMS, chapter information, and DRGs where available.

ICD 10 CM Field Value
Diagnosis Code: C84.9
Description: Mature T/NK-cell lymphomas, unspecified
  • NK/T cell lymphoma NOS
  • Excludes1: mature T-cell lymphoma, not elsewhere classified (C84.4-)
Chapter Neoplasms (C00-D49)
Block Malignant neoplasms of lymphoid, hematopoietic and related tissue (C81-C96)
Parent C84 - Mature T/NK-cell lymphomas
ICD-10-CM Children (deeper level / typically more specific) of C84.9:
C84.90 - Mature T/NK-cell lymphomas, unspecified, unspecified site
C84.91 - Mature T/NK-cell lymphomas, unspecified, lymph nodes of head, face, and neck
C84.92 - Mature T/NK-cell lymphomas, unspecified, intrathoracic lymph nodes
C84.93 - Mature T/NK-cell lymphomas, unspecified, intra-abdominal lymph nodes
C84.94 - Mature T/NK-cell lymphomas, unspecified, lymph nodes of axilla and upper limb
C84.95 - Mature T/NK-cell lymphomas, unspecified, lymph nodes of inguinal region and lower limb
C84.96 - Mature T/NK-cell lymphomas, unspecified, intrapelvic lymph nodes
C84.97 - Mature T/NK-cell lymphomas, unspecified, spleen
C84.98 - Mature T/NK-cell lymphomas, unspecified, lymph nodes of multiple sites
C84.99 - Mature T/NK-cell lymphomas, unspecified, extranodal and solid organ sites
ICD-10-CM Siblings (same level / similar specificity) of C84.9:
C84.0 - Mycosis fungoides
C84.1 - S
C84.4 - Peripheral T-cell lymphoma, not classified
C84.6 - Anaplastic large cell lymphoma, ALK-positive
C84.7 - Anaplastic large cell lymphoma, ALK-negative
C84.A - Cutaneous T-cell lymphoma, unspecified
C84.Z - Other mature T/NK-cell lymphomas