ICD-10-CM category
C84 Mature T/NK-cell lymphomas
C84 is a category, not a billable code. Report one of the 89 complete codes below.
C84.0…
11 codes
- C84.00Mycosis fungoides, unspecified site
- C84.01Mycosis fungoides, lymph nodes of head, face, and neck
- C84.02Mycosis fungoides, intrathoracic lymph nodes
- C84.03Mycosis fungoides, intra-abdominal lymph nodes
- C84.04Mycosis fungoides, lymph nodes of axilla and upper limb
- C84.05Mycosis fungoides, lymph nodes of inguinal region and lower limb
- C84.06Mycosis fungoides, intrapelvic lymph nodes
- C84.07Mycosis fungoides, spleen
- C84.08Mycosis fungoides, lymph nodes of multiple sites
- C84.09Mycosis fungoides, extranodal and solid organ sites
- C84.0AMycosis fungoides, in remission
C84.1…
11 codes
- C84.10Sezary disease, unspecified site
- C84.11Sezary disease, lymph nodes of head, face, and neck
- C84.12Sezary disease, intrathoracic lymph nodes
- C84.13Sezary disease, intra-abdominal lymph nodes
- C84.14Sezary disease, lymph nodes of axilla and upper limb
- C84.15Sezary disease, lymph nodes of inguinal region and lower limb
- C84.16Sezary disease, intrapelvic lymph nodes
- C84.17Sezary disease, spleen
- C84.18Sezary disease, lymph nodes of multiple sites
- C84.19Sezary disease, extranodal and solid organ sites
- C84.1ASezary disease, in remission
C84.4…
11 codes
- C84.40Peripheral T-cell lymphoma, not elsewhere classified, unspecified site
- C84.41Peripheral T-cell lymphoma, not elsewhere classified, lymph nodes of head, face, and neck
- C84.42Peripheral T-cell lymphoma, not elsewhere classified, intrathoracic lymph nodes
- C84.43Peripheral T-cell lymphoma, not elsewhere classified, intra-abdominal lymph nodes
- C84.44Peripheral T-cell lymphoma, not elsewhere classified, lymph nodes of axilla and upper limb
- C84.45Peripheral T-cell lymphoma, not elsewhere classified, lymph nodes of inguinal region and lower limb
- C84.46Peripheral T-cell lymphoma, not elsewhere classified, intrapelvic lymph nodes
- C84.47Peripheral T-cell lymphoma, not elsewhere classified, spleen
- C84.48Peripheral T-cell lymphoma, not elsewhere classified, lymph nodes of multiple sites
- C84.49Peripheral T-cell lymphoma, not elsewhere classified, extranodal and solid organ sites
- C84.4APeripheral T-cell lymphoma, not elsewhere classified, in remission
C84.6…
11 codes
- C84.60Anaplastic large cell lymphoma, ALK-positive, unspecified site
- C84.61Anaplastic large cell lymphoma, ALK-positive, lymph nodes of head, face, and neck
- C84.62Anaplastic large cell lymphoma, ALK-positive, intrathoracic lymph nodes
- C84.63Anaplastic large cell lymphoma, ALK-positive, intra-abdominal lymph nodes
- C84.64Anaplastic large cell lymphoma, ALK-positive, lymph nodes of axilla and upper limb
- C84.65Anaplastic large cell lymphoma, ALK-positive, lymph nodes of inguinal region and lower limb
- C84.66Anaplastic large cell lymphoma, ALK-positive, intrapelvic lymph nodes
- C84.67Anaplastic large cell lymphoma, ALK-positive, spleen
- C84.68Anaplastic large cell lymphoma, ALK-positive, lymph nodes of multiple sites
- C84.69Anaplastic large cell lymphoma, ALK-positive, extranodal and solid organ sites
- C84.6AAnaplastic large cell lymphoma, ALK-positive, in remission
C84.7…
12 codes
- C84.70Anaplastic large cell lymphoma, ALK-negative, unspecified site
- C84.71Anaplastic large cell lymphoma, ALK-negative, lymph nodes of head, face, and neck
- C84.72Anaplastic large cell lymphoma, ALK-negative, intrathoracic lymph nodes
- C84.73Anaplastic large cell lymphoma, ALK-negative, intra-abdominal lymph nodes
- C84.74Anaplastic large cell lymphoma, ALK-negative, lymph nodes of axilla and upper limb
- C84.75Anaplastic large cell lymphoma, ALK-negative, lymph nodes of inguinal region and lower limb
- C84.76Anaplastic large cell lymphoma, ALK-negative, intrapelvic lymph nodes
- C84.77Anaplastic large cell lymphoma, ALK-negative, spleen
- C84.78Anaplastic large cell lymphoma, ALK-negative, lymph nodes of multiple sites
- C84.79Anaplastic large cell lymphoma, ALK-negative, extranodal and solid organ sites
- C84.7AAnaplastic large cell lymphoma, ALK-negative, breast
- C84.7BAnaplastic large cell lymphoma, ALK-negative, in remission
C84.9…
11 codes
- C84.90Mature T/NK-cell lymphomas, unspecified, unspecified site
- C84.91Mature T/NK-cell lymphomas, unspecified, lymph nodes of head, face, and neck
- C84.92Mature T/NK-cell lymphomas, unspecified, intrathoracic lymph nodes
- C84.93Mature T/NK-cell lymphomas, unspecified, intra-abdominal lymph nodes
- C84.94Mature T/NK-cell lymphomas, unspecified, lymph nodes of axilla and upper limb
- C84.95Mature T/NK-cell lymphomas, unspecified, lymph nodes of inguinal region and lower limb
- C84.96Mature T/NK-cell lymphomas, unspecified, intrapelvic lymph nodes
- C84.97Mature T/NK-cell lymphomas, unspecified, spleen
- C84.98Mature T/NK-cell lymphomas, unspecified, lymph nodes of multiple sites
- C84.99Mature T/NK-cell lymphomas, unspecified, extranodal and solid organ sites
- C84.9AMature T/NK-cell lymphomas, unspecified, in remission
C84.A…
11 codes
- C84.A0Cutaneous T-cell lymphoma, unspecified, unspecified site
- C84.A1Cutaneous T-cell lymphoma, unspecified lymph nodes of head, face, and neck
- C84.A2Cutaneous T-cell lymphoma, unspecified, intrathoracic lymph nodes
- C84.A3Cutaneous T-cell lymphoma, unspecified, intra-abdominal lymph nodes
- C84.A4Cutaneous T-cell lymphoma, unspecified, lymph nodes of axilla and upper limb
- C84.A5Cutaneous T-cell lymphoma, unspecified, lymph nodes of inguinal region and lower limb
- C84.A6Cutaneous T-cell lymphoma, unspecified, intrapelvic lymph nodes
- C84.A7Cutaneous T-cell lymphoma, unspecified, spleen
- C84.A8Cutaneous T-cell lymphoma, unspecified, lymph nodes of multiple sites
- C84.A9Cutaneous T-cell lymphoma, unspecified, extranodal and solid organ sites
- C84.AACutaneous T-cell lymphoma, unspecified, in remission
C84.Z…
11 codes
- C84.Z0Other mature T/NK-cell lymphomas, unspecified site
- C84.Z1Other mature T/NK-cell lymphomas, lymph nodes of head, face, and neck
- C84.Z2Other mature T/NK-cell lymphomas, intrathoracic lymph nodes
- C84.Z3Other mature T/NK-cell lymphomas, intra-abdominal lymph nodes
- C84.Z4Other mature T/NK-cell lymphomas, lymph nodes of axilla and upper limb
- C84.Z5Other mature T/NK-cell lymphomas, lymph nodes of inguinal region and lower limb
- C84.Z6Other mature T/NK-cell lymphomas, intrapelvic lymph nodes
- C84.Z7Other mature T/NK-cell lymphomas, spleen
- C84.Z8Other mature T/NK-cell lymphomas, lymph nodes of multiple sites
- C84.Z9Other mature T/NK-cell lymphomas, extranodal and solid organ sites
- C84.ZAOther mature T/NK-cell lymphomas, in remission
Outside the US? C84 in the international WHO ICD-10 lists its inclusion and exclusion notes.
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ICD-10-CM is developed by the National Center for Health Statistics (NCHS), Centers for Disease Control and Prevention, U.S. Department of Health and Human Services, and is based on the WHO ICD-10. Codes and titles are reproduced unchanged from the FY2026 code list (effective 1 October 2025). Their use here does not imply endorsement by CDC, HHS or the U.S. Government. Changes effective on or after 1 October 2026 may not be reflected yet; check the current release at cdc.gov or cms.gov before submitting claims.
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