C82.4 — Follicular lymphoma grade IIIb
C82.4 is a non-billable header ICD-10-CM code for follicular lymphoma grade iiib. It cannot be billed on its own: choose one of the more specific child codes below.
Excludes1 inherited from the categories above C82.4
These are not written on C82.4, but they bind it: a note on a category applies to every code beneath it. Billing C82.4 with anything listed here is a denial.
Risk adjustment
C82.4 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
C82.4 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 C82.4
11 child codes. Green means billable.
- C82.40Follicular lymphoma grade IIIb, unspecified site
- C82.41Follicular lymphoma grade IIIb, lymph nodes of head, face, and neck
- C82.42Follicular lymphoma grade IIIb, intrathoracic lymph nodes
- C82.43Follicular lymphoma grade IIIb, intra-abdominal lymph nodes
- C82.44Follicular lymphoma grade IIIb, lymph nodes of axilla and upper limb
- C82.45Follicular lymphoma grade IIIb, lymph nodes of inguinal region and lower limb
- C82.46Follicular lymphoma grade IIIb, intrapelvic lymph nodes
- C82.47Follicular lymphoma grade IIIb, spleen
- C82.48Follicular lymphoma grade IIIb, lymph nodes of multiple sites
- C82.49Follicular lymphoma grade IIIb, extranodal and solid organ sites
- C82.4AFollicular lymphoma grade IIIb, in remission
Related codes at this level
Codes that share C82. If C82.4 is not quite right, the correct code is usually one of these.
Questions about C82.4
- Is C82.4 a billable ICD-10-CM code?
- No. C82.4 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
- Where does C82.4 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 C82.4?
- C82.4 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 C82.4 (C82) and apply to it just the same.