Mature T/NK-cell lymphomas (C84)

Browse all the diagnosis codes used for mature t/nk-cell lymphomas (c84). For easy navigation, the diagnosis codes are sorted in alphabetical order and grouped by sections. Each section is clearly marked with its description, and the corresponding three-digit code range. This format makes it simple to browse diagnosis codes in this chapter or section and find what you're looking for. We've also added green checkmark icons to label billable codes, and red warning icons for non-billable ones. This makes it easy to identify which codes can be billed.

Clinical Information

Lymph Nodes - They are oval or bean shaped bodies (1 - 30 mm in diameter) located along the lymphatic system.

Mycosis Fungoides - A chronic, malignant T-cell lymphoma of the skin. In the late stages, the LYMPH NODES and viscera are affected.

Pagetoid Reticulosis - A distinct variant of mycosis fungoides characterized by the presence of localized patches or plaques with an intraepidermal proliferation of neoplastic cells.

Instructional Notations

Type 1 Excludes

A type 1 excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.

  • personal history of non-Hodgkin lymphoma Z85.72
  • Neoplasms (C00–D49)

    • Malignant neoplasms of lymphoid, hematopoietic and related tissue (C81-C96)

        • Mature T/NK-cell lymphomas (C84)

        • C84 Mature T/NK-cell lymphomas
        • C84.0 Mycosis fungoides
        • C84.00 Mycosis fungoides, unspecified site
        • C84.01 Mycosis fungoides, lymph nodes of head, face, and neck
        • C84.02 Mycosis fungoides, intrathoracic lymph nodes
        • C84.03 Mycosis fungoides, intra-abdominal lymph nodes
        • C84.04 Mycosis fungoides, lymph nodes of axilla and upper limb
        • C84.05 Mycosis fungoides, lymph nodes of inguinal region and lower limb
        • C84.06 Mycosis fungoides, intrapelvic lymph nodes
        • C84.07 Mycosis fungoides, spleen
        • C84.08 Mycosis fungoides, lymph nodes of multiple sites
        • C84.09 Mycosis fungoides, extranodal and solid organ sites
        • C84.1 Sezary disease
        • C84.10 Sezary disease, unspecified site
        • C84.11 Sezary disease, lymph nodes of head, face, and neck
        • C84.12 Sezary disease, intrathoracic lymph nodes
        • C84.13 Sezary disease, intra-abdominal lymph nodes
        • C84.14 Sezary disease, lymph nodes of axilla and upper limb
        • C84.15 Sezary disease, lymph nodes of inguinal region and lower limb
        • C84.16 Sezary disease, intrapelvic lymph nodes
        • C84.17 Sezary disease, spleen
        • C84.18 Sezary disease, lymph nodes of multiple sites
        • C84.19 Sezary disease, extranodal and solid organ sites
        • C84.4 Peripheral T-cell lymphoma, not elsewhere classified
        • C84.40 Peripheral T-cell lymphoma, not elsewhere classified, unspecified site
        • C84.41 Peripheral T-cell lymphoma, not elsewhere classified, lymph nodes of head, face, and neck
        • C84.42 Peripheral T-cell lymphoma, not elsewhere classified, intrathoracic lymph nodes
        • C84.43 Peripheral T-cell lymphoma, not elsewhere classified, intra-abdominal lymph nodes
        • C84.44 Peripheral T-cell lymphoma, not elsewhere classified, lymph nodes of axilla and upper limb
        • C84.45 Peripheral T-cell lymphoma, not elsewhere classified, lymph nodes of inguinal region and lower limb
        • C84.46 Peripheral T-cell lymphoma, not elsewhere classified, intrapelvic lymph nodes
        • C84.47 Peripheral T-cell lymphoma, not elsewhere classified, spleen
        • C84.48 Peripheral T-cell lymphoma, not elsewhere classified, lymph nodes of multiple sites
        • C84.49 Peripheral T-cell lymphoma, not elsewhere classified, extranodal and solid organ sites
        • C84.6 Anaplastic large cell lymphoma, ALK-positive
        • C84.60 Anaplastic large cell lymphoma, ALK-positive, unspecified site
        • C84.61 Anaplastic large cell lymphoma, ALK-positive, lymph nodes of head, face, and neck
        • C84.62 Anaplastic large cell lymphoma, ALK-positive, intrathoracic lymph nodes
        • C84.63 Anaplastic large cell lymphoma, ALK-positive, intra-abdominal lymph nodes
        • C84.64 Anaplastic large cell lymphoma, ALK-positive, lymph nodes of axilla and upper limb
        • C84.65 Anaplastic large cell lymphoma, ALK-positive, lymph nodes of inguinal region and lower limb
        • C84.66 Anaplastic large cell lymphoma, ALK-positive, intrapelvic lymph nodes
        • C84.67 Anaplastic large cell lymphoma, ALK-positive, spleen
        • C84.68 Anaplastic large cell lymphoma, ALK-positive, lymph nodes of multiple sites
        • C84.69 Anaplastic large cell lymphoma, ALK-positive, extranodal and solid organ sites
        • C84.7 Anaplastic large cell lymphoma, ALK-negative
        • C84.70 Anaplastic large cell lymphoma, ALK-negative, unspecified site
        • C84.71 Anaplastic large cell lymphoma, ALK-negative, lymph nodes of head, face, and neck
        • C84.72 Anaplastic large cell lymphoma, ALK-negative, intrathoracic lymph nodes
        • C84.73 Anaplastic large cell lymphoma, ALK-negative, intra-abdominal lymph nodes
        • C84.74 Anaplastic large cell lymphoma, ALK-negative, lymph nodes of axilla and upper limb
        • C84.75 Anaplastic large cell lymphoma, ALK-negative, lymph nodes of inguinal region and lower limb
        • C84.76 Anaplastic large cell lymphoma, ALK-negative, intrapelvic lymph nodes
        • C84.77 Anaplastic large cell lymphoma, ALK-negative, spleen
        • C84.78 Anaplastic large cell lymphoma, ALK-negative, lymph nodes of multiple sites
        • C84.79 Anaplastic large cell lymphoma, ALK-negative, extranodal and solid organ sites
        • C84.7A Anaplastic large cell lymphoma, ALK-negative, breast
        • C84.9 Mature T/NK-cell lymphomas, unspecified
        • 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
        • C84.A Cutaneous T-cell lymphoma, unspecified
        • C84.A0 Cutaneous T-cell lymphoma, unspecified, unspecified site
        • C84.A1 Cutaneous T-cell lymphoma, unspecified lymph nodes of head, face, and neck
        • C84.A2 Cutaneous T-cell lymphoma, unspecified, intrathoracic lymph nodes
        • C84.A3 Cutaneous T-cell lymphoma, unspecified, intra-abdominal lymph nodes
        • C84.A4 Cutaneous T-cell lymphoma, unspecified, lymph nodes of axilla and upper limb
        • C84.A5 Cutaneous T-cell lymphoma, unspecified, lymph nodes of inguinal region and lower limb
        • C84.A6 Cutaneous T-cell lymphoma, unspecified, intrapelvic lymph nodes
        • C84.A7 Cutaneous T-cell lymphoma, unspecified, spleen
        • C84.A8 Cutaneous T-cell lymphoma, unspecified, lymph nodes of multiple sites
        • C84.A9 Cutaneous T-cell lymphoma, unspecified, extranodal and solid organ sites
        • C84.Z Other mature T/NK-cell lymphomas
        • C84.Z0 Other mature T/NK-cell lymphomas, unspecified site
        • C84.Z1 Other mature T/NK-cell lymphomas, lymph nodes of head, face, and neck
        • C84.Z2 Other mature T/NK-cell lymphomas, intrathoracic lymph nodes
        • C84.Z3 Other mature T/NK-cell lymphomas, intra-abdominal lymph nodes
        • C84.Z4 Other mature T/NK-cell lymphomas, lymph nodes of axilla and upper limb
        • C84.Z5 Other mature T/NK-cell lymphomas, lymph nodes of inguinal region and lower limb
        • C84.Z6 Other mature T/NK-cell lymphomas, intrapelvic lymph nodes
        • C84.Z7 Other mature T/NK-cell lymphomas, spleen
        • C84.Z8 Other mature T/NK-cell lymphomas, lymph nodes of multiple sites
        • C84.Z9 Other mature T/NK-cell lymphomas, extranodal and solid organ sites