| C84 | Mature T/NK-cell lymphomas | NON-BILLABLE CODE |
| C84.0 | Mycosis fungoides | NON-BILLABLE CODE |
| C84.00 | Mycosis fungoides, unspecified site | BILLABLE CODE |
| C84.01 | Mycosis fungoides, lymph nodes of head, face, and neck | BILLABLE CODE |
| C84.02 | Mycosis fungoides, intrathoracic lymph nodes | BILLABLE CODE |
| C84.03 | Mycosis fungoides, intra-abdominal lymph nodes | BILLABLE CODE |
| C84.04 | Mycosis fungoides, lymph nodes of axilla and upper limb | BILLABLE CODE |
| C84.05 | Mycosis fungoides, lymph nodes of inguinal region and lower limb | BILLABLE CODE |
| C84.06 | Mycosis fungoides, intrapelvic lymph nodes | BILLABLE CODE |
| C84.07 | Mycosis fungoides, spleen | BILLABLE CODE |
| C84.08 | Mycosis fungoides, lymph nodes of multiple sites | BILLABLE CODE |
| C84.09 | Mycosis fungoides, extranodal and solid organ sites | BILLABLE CODE |
| C84.1 | Sezary disease | NON-BILLABLE CODE |
| C84.10 | Sezary disease, unspecified site | BILLABLE CODE |
| C84.11 | Sezary disease, lymph nodes of head, face, and neck | BILLABLE CODE |
| C84.12 | Sezary disease, intrathoracic lymph nodes | BILLABLE CODE |
| C84.13 | Sezary disease, intra-abdominal lymph nodes | BILLABLE CODE |
| C84.14 | Sezary disease, lymph nodes of axilla and upper limb | BILLABLE CODE |
| C84.15 | Sezary disease, lymph nodes of inguinal region and lower limb | BILLABLE CODE |
| C84.16 | Sezary disease, intrapelvic lymph nodes | BILLABLE CODE |
| C84.17 | Sezary disease, spleen | BILLABLE CODE |
| C84.18 | Sezary disease, lymph nodes of multiple sites | BILLABLE CODE |
| C84.19 | Sezary disease, extranodal and solid organ sites | BILLABLE CODE |
| C84.4 | Peripheral T-cell lymphoma, not elsewhere classified | NON-BILLABLE CODE |
| C84.40 | Peripheral T-cell lymphoma, not elsewhere classified, unspecified site | BILLABLE CODE |
| C84.41 | Peripheral T-cell lymphoma, not elsewhere classified, lymph nodes of head, face, and neck | BILLABLE CODE |
| C84.42 | Peripheral T-cell lymphoma, not elsewhere classified, intrathoracic lymph nodes | BILLABLE CODE |
| C84.43 | Peripheral T-cell lymphoma, not elsewhere classified, intra-abdominal lymph nodes | BILLABLE CODE |
| C84.44 | Peripheral T-cell lymphoma, not elsewhere classified, lymph nodes of axilla and upper limb | BILLABLE CODE |
| C84.45 | Peripheral T-cell lymphoma, not elsewhere classified, lymph nodes of inguinal region and lower limb | BILLABLE CODE |
| C84.46 | Peripheral T-cell lymphoma, not elsewhere classified, intrapelvic lymph nodes | BILLABLE CODE |
| C84.47 | Peripheral T-cell lymphoma, not elsewhere classified, spleen | BILLABLE CODE |
| C84.48 | Peripheral T-cell lymphoma, not elsewhere classified, lymph nodes of multiple sites | BILLABLE CODE |
| C84.49 | Peripheral T-cell lymphoma, not elsewhere classified, extranodal and solid organ sites | BILLABLE CODE |
| C84.6 | Anaplastic large cell lymphoma, ALK-positive | NON-BILLABLE CODE |
| C84.60 | Anaplastic large cell lymphoma, ALK-positive, unspecified site | BILLABLE CODE |
| C84.61 | Anaplastic large cell lymphoma, ALK-positive, lymph nodes of head, face, and neck | BILLABLE CODE |
| C84.62 | Anaplastic large cell lymphoma, ALK-positive, intrathoracic lymph nodes | BILLABLE CODE |
| C84.63 | Anaplastic large cell lymphoma, ALK-positive, intra-abdominal lymph nodes | BILLABLE CODE |
| C84.64 | Anaplastic large cell lymphoma, ALK-positive, lymph nodes of axilla and upper limb | BILLABLE CODE |
| C84.65 | Anaplastic large cell lymphoma, ALK-positive, lymph nodes of inguinal region and lower limb | BILLABLE CODE |
| C84.66 | Anaplastic large cell lymphoma, ALK-positive, intrapelvic lymph nodes | BILLABLE CODE |
| C84.67 | Anaplastic large cell lymphoma, ALK-positive, spleen | BILLABLE CODE |
| C84.68 | Anaplastic large cell lymphoma, ALK-positive, lymph nodes of multiple sites | BILLABLE CODE |
| C84.69 | Anaplastic large cell lymphoma, ALK-positive, extranodal and solid organ sites | BILLABLE CODE |
| C84.7 | Anaplastic large cell lymphoma, ALK-negative | NON-BILLABLE CODE |
| C84.70 | Anaplastic large cell lymphoma, ALK-negative, unspecified site | BILLABLE CODE |
| C84.71 | Anaplastic large cell lymphoma, ALK-negative, lymph nodes of head, face, and neck | BILLABLE CODE |
| C84.72 | Anaplastic large cell lymphoma, ALK-negative, intrathoracic lymph nodes | BILLABLE CODE |
| C84.73 | Anaplastic large cell lymphoma, ALK-negative, intra-abdominal lymph nodes | BILLABLE CODE |
| C84.74 | Anaplastic large cell lymphoma, ALK-negative, lymph nodes of axilla and upper limb | BILLABLE CODE |
| C84.75 | Anaplastic large cell lymphoma, ALK-negative, lymph nodes of inguinal region and lower limb | BILLABLE CODE |
| C84.76 | Anaplastic large cell lymphoma, ALK-negative, intrapelvic lymph nodes | BILLABLE CODE |
| C84.77 | Anaplastic large cell lymphoma, ALK-negative, spleen | BILLABLE CODE |
| C84.78 | Anaplastic large cell lymphoma, ALK-negative, lymph nodes of multiple sites | BILLABLE CODE |
| C84.79 | Anaplastic large cell lymphoma, ALK-negative, extranodal and solid organ sites | BILLABLE CODE |
| C84.7A | Anaplastic large cell lymphoma, ALK-negative, breast | BILLABLE CODE |
| C84.9 | Mature T/NK-cell lymphomas, unspecified | NON-BILLABLE CODE |
| C84.90 | Mature T/NK-cell lymphomas, unspecified, unspecified site | BILLABLE CODE |
| C84.91 | Mature T/NK-cell lymphomas, unspecified, lymph nodes of head, face, and neck | BILLABLE CODE |
| C84.92 | Mature T/NK-cell lymphomas, unspecified, intrathoracic lymph nodes | BILLABLE CODE |
| C84.93 | Mature T/NK-cell lymphomas, unspecified, intra-abdominal lymph nodes | BILLABLE CODE |
| C84.94 | Mature T/NK-cell lymphomas, unspecified, lymph nodes of axilla and upper limb | BILLABLE CODE |
| C84.95 | Mature T/NK-cell lymphomas, unspecified, lymph nodes of inguinal region and lower limb | BILLABLE CODE |
| C84.96 | Mature T/NK-cell lymphomas, unspecified, intrapelvic lymph nodes | BILLABLE CODE |
| C84.97 | Mature T/NK-cell lymphomas, unspecified, spleen | BILLABLE CODE |
| C84.98 | Mature T/NK-cell lymphomas, unspecified, lymph nodes of multiple sites | BILLABLE CODE |
| C84.99 | Mature T/NK-cell lymphomas, unspecified, extranodal and solid organ sites | BILLABLE CODE |
| C84.A | Cutaneous T-cell lymphoma, unspecified | NON-BILLABLE CODE |
| C84.A0 | Cutaneous T-cell lymphoma, unspecified, unspecified site | BILLABLE CODE |
| C84.A1 | Cutaneous T-cell lymphoma, unspecified lymph nodes of head, face, and neck | BILLABLE CODE |
| C84.A2 | Cutaneous T-cell lymphoma, unspecified, intrathoracic lymph nodes | BILLABLE CODE |
| C84.A3 | Cutaneous T-cell lymphoma, unspecified, intra-abdominal lymph nodes | BILLABLE CODE |
| C84.A4 | Cutaneous T-cell lymphoma, unspecified, lymph nodes of axilla and upper limb | BILLABLE CODE |
| C84.A5 | Cutaneous T-cell lymphoma, unspecified, lymph nodes of inguinal region and lower limb | BILLABLE CODE |
| C84.A6 | Cutaneous T-cell lymphoma, unspecified, intrapelvic lymph nodes | BILLABLE CODE |
| C84.A8 | Cutaneous T-cell lymphoma, unspecified, lymph nodes of multiple sites | BILLABLE CODE |
| C84.A9 | Cutaneous T-cell lymphoma, unspecified, extranodal and solid organ sites | BILLABLE CODE |
| C84.Z | Other mature T/NK-cell lymphomas | NON-BILLABLE CODE |
| C84.Z0 | Other mature T/NK-cell lymphomas, unspecified site | BILLABLE CODE |
| C84.Z1 | Other mature T/NK-cell lymphomas, lymph nodes of head, face, and neck | BILLABLE CODE |
| C84.Z2 | Other mature T/NK-cell lymphomas, intrathoracic lymph nodes | BILLABLE CODE |
| C84.Z3 | Other mature T/NK-cell lymphomas, intra-abdominal lymph nodes | BILLABLE CODE |
| C84.Z4 | Other mature T/NK-cell lymphomas, lymph nodes of axilla and upper limb | BILLABLE CODE |
| C84.Z5 | Other mature T/NK-cell lymphomas, lymph nodes of inguinal region and lower limb | BILLABLE CODE |
| C84.Z6 | Other mature T/NK-cell lymphomas, intrapelvic lymph nodes | BILLABLE CODE |
| C84.Z7 | Other mature T/NK-cell lymphomas, spleen | BILLABLE CODE |
| C84.Z8 | Other mature T/NK-cell lymphomas, lymph nodes of multiple sites | BILLABLE CODE |
| C84.Z9 | Other mature T/NK-cell lymphomas, extranodal and solid organ sites | BILLABLE CODE |
