Is C84.Z a billable code?
No. C84.Z is a header code that groups 11 more specific codes. Use one of the billable codes listed on this page instead.
ICD-10-CM FY2027 diagnosis code
C84.Z: Other mature T/NK-cell lymphomas
Header code: not billableValid for dates of service October 1, 2026 to September 30, 2027
C84.Z groups related diagnoses under other mature t/nk-cell lymphomas. It cannot be used on a claim by itself. Choose the billable code below that matches the patient's record.
Billable codes under C84.Z
- 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
Other codes in C84 Mature T/NK-cell lymphomas
- C84.0Mycosis fungoidesheader
- C84.1Sezary diseaseheader
- C84.4Peripheral T-cell lymphoma, not elsewhere classifiedheader
- C84.6Anaplastic large cell lymphoma, ALK-positiveheader
- C84.7Anaplastic large cell lymphoma, ALK-negativeheader
- C84.9Mature T/NK-cell lymphomas, unspecifiedheader
- C84.ACutaneous T-cell lymphoma, unspecifiedheader
C84.Z questions
What does C84.Z mean?
C84.Z is the ICD-10-CM code for Other mature T/NK-cell lymphomas. It is in chapter 2, Neoplasms (C00-D49).
Code titles come from the official ICD-10-CM files published by the CDC National Center for Health Statistics. Always check payer rules and the clinical record before billing.