C84.0 is a non-billable/non-specific diagnosis code from the 2026 ICD-10-CM used to classify the following condition: Mycosis fungoides.
Peripheral T-cell lymphoma, not elsewhere classified (C84.4-)
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Mycosis fungoides, unspecified site
Mycosis fungoides, lymph nodes of head, face, and neck
Mycosis fungoides, intrathoracic lymph nodes
Mycosis fungoides, intra-abdominal lymph nodes
Mycosis fungoides, lymph nodes of axilla and upper limb
Mycosis fungoides, lymph nodes of inguinal region and lower limb
Mycosis fungoides, intrapelvic lymph nodes
Mycosis fungoides, spleen
Mycosis fungoides, lymph nodes of multiple sites
Mycosis fungoides, extranodal and solid organ sites
Mycosis fungoides, in remission
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