C84.4 Peripheral T-cell lymphoma, not elsewhere classified

Non-billable header with 11 child codes.

Applicable to

• Lennert's lymphoma
• Lymphoepithelioid lymphoma
• Mature T-cell lymphoma, not elsewhere classified

Applies from C84 Mature T/NK-cell lymphomas

Excludes1 (never code together)

• personal history of non-Hodgkin lymphoma (Z85.72)

Codes under C84.4

• 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
• C84.4A Peripheral T-cell lymphoma, not elsewhere classified, in remission

Code annotations containing back-references to C84.4

Back-references to C84.4

• Type 1 Excludes: C84.0 Mycosis fungoides ("peripheral T-cell lymphoma, not elsewhere classified (C84.4-)")
• Type 1 Excludes: C84.9 Mature T/NK-cell lymphomas, unspecified ("mature T-cell lymphoma, not elsewhere classified (C84.4-)")

Back-references to C84

• Type 1 Excludes: C26.1 Malignant neoplasm of spleen ("non-Hodgkin lymphoma (C82-C85)")
• Type 1 Excludes: C76 Malignant neoplasm of other and ill-defined sites ("malignant neoplasm of lymphoid, hematopoietic and related tissue (C81-C96)")
• Type 1 Excludes: C77 Secondary and unspecified malignant neoplasm of lymph nodes ("malignant neoplasm of lymph nodes, specified as primary (C81-C86, C88, C96.-)")
• Type 1 Excludes: C82 Follicular lymphoma ("mature T/NK-cell lymphomas (C84.-)")
• Type 1 Excludes: C83.0 Small cell B-cell lymphoma ("mature T/NK-cell lymphomas (C84.-)")
• Type 1 Excludes: C83.3 Diffuse large B-cell lymphoma ("mature T/NK-cell lymphomas (C84.-)")
• Type 1 Excludes: C86 Other specified types of T/NK-cell lymphoma ("mature T/NK-cell lymphomas (C84.-)")
• Code Also: D47.02 Systemic mastocytosis ("non-Hodgkin lymphoma (C82-C85)")
• Code First: Z15.0 Genetic susceptibility to malignant neoplasm (", if applicable, any current malignant neoplasm (C00-C75, C81-C96)")

Diagnosis Index entries for C84.4

• Lymphoma (of) (malignant) › Lennert's
• Lymphoma (of) (malignant) › lymphoepithelioid
• Lymphoma (of) (malignant) › mature T-cell NEC
• Lymphoma (of) (malignant) › peripheral T-cell NEC

Nearby codes

• 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
• C84.1A Sezary disease, in remission
• C84.4 Peripheral T-cell lymphoma, not elsewhere classified (this code)
• 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