C84.6 — Anaplastic large cell lymphoma, ALK-positive
C84.6 is a non-billable header ICD-10-CM code for anaplastic large cell lymphoma, alk-positive. It cannot be billed on its own: choose one of the more specific child codes below.
Inclusion terms
Alternative wordings a physician may use in the chart for this same code.
- Anaplastic large cell lymphoma, CD30-positive
Excludes1 inherited from the categories above C84.6
These are not written on C84.6, but they bind it: a note on a category applies to every code beneath it. Billing C84.6 with anything listed here is a denial.
Other codes that can never be billed with C84.6
These codes carry an Excludes1 note pointing at C84.6. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading C84.6 alone.
Risk adjustment
C84.6 does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.
Code history
C84.6 has not changed since FY2024 — no addition, revision or deletion across the three most recent ICD-10-CM releases.
Code to one of these instead C84.6
11 child codes. Green means billable.
- C84.60Anaplastic large cell lymphoma, ALK-positive, unspecified site
- C84.61Anaplastic large cell lymphoma, ALK-positive, lymph nodes of head, face, and neck
- C84.62Anaplastic large cell lymphoma, ALK-positive, intrathoracic lymph nodes
- C84.63Anaplastic large cell lymphoma, ALK-positive, intra-abdominal lymph nodes
- C84.64Anaplastic large cell lymphoma, ALK-positive, lymph nodes of axilla and upper limb
- C84.65Anaplastic large cell lymphoma, ALK-positive, lymph nodes of inguinal region and lower limb
- C84.66Anaplastic large cell lymphoma, ALK-positive, intrapelvic lymph nodes
- C84.67Anaplastic large cell lymphoma, ALK-positive, spleen
- C84.68Anaplastic large cell lymphoma, ALK-positive, lymph nodes of multiple sites
- C84.69Anaplastic large cell lymphoma, ALK-positive, extranodal and solid organ sites
- C84.6AAnaplastic large cell lymphoma, ALK-positive, in remission
Related codes at this level
Codes that share C84. If C84.6 is not quite right, the correct code is usually one of these.
Questions about C84.6
- Is C84.6 a billable ICD-10-CM code?
- No. C84.6 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
- Where does C84.6 sit in the tabular list?
- Neoplasms (C00-D49), in the block Malignant neoplasms of lymphoid, hematopoietic and related tissue (C81-C96).
- What cannot be coded together with C84.6?
- C84.6 carries Excludes1 notes, which means the conditions they list can never be coded together with it on the same encounter. Some are written on the categories above C84.6 (C84) and apply to it just the same.