C84.4
Header — not billablePeripheral T-cell lymphoma, not elsewhere classified
The ICD-10 code for peripheral t-cell lymphoma, not elsewhere classified is C84.4.
C84.4 is a non-billable header code. It groups related conditions but cannot be used on its own for reimbursement — select one of the 11 more specific codes below.
Clinical notes
Also known as
Alternate wording, synonyms, or specific conditions that fall under this code, listed to help confirm you've picked the right one.
- Lennert's lymphoma
- Lymphoepithelioid lymphoma
- Mature T-cell lymphoma, not elsewhere classified
Documentation support
General coding-documentation guidance — not a substitute for payer-specific requirements or professional coding judgment.
- •This is a non-billable header code. Documentation must support a more specific child code before this diagnosis can be reported on a claim.
- •As a general rule, code to the highest level of specificity supported by the documentation in the medical record.
Child codes under C84.4
- 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
Related codes in this category
- C84.0Mycosis fungoidesnon-billable header
- C84.1Sézary diseasenon-billable header
- C84.6Anaplastic large cell lymphoma, ALK-positivenon-billable header
- C84.7Anaplastic large cell lymphoma, ALK-negativenon-billable header
- C84.9Mature T/NK-cell lymphomas, unspecifiednon-billable header
- C84.ACutaneous T-cell lymphoma, unspecifiednon-billable header
- C84.ZOther mature T/NK-cell lymphomasnon-billable header
- C84.4Peripheral T-cell lymphoma, not elsewhere classifiednon-billable header