C82.4A
BillableFollicular lymphoma grade IIIb, in remission
HCC Category Mapping
V28HCC 21 — Breast, Prostate, Colorectal and Other Cancers and Tumors
0.545V24HCC 10 — Lymphoma and Other Cancers
0.675ESRDHCC 10 — Lymphoma and Other Cancers
0.000RxHCCHCC 21 — Hodgkin Lymphoma and Other Cancers
0.000What This Code Means
A type of cancer of the lymph system (follicular lymphoma) in an advanced stage that is currently in remission (no evidence of active disease).
Coding Tips
- •The '4A' suffix indicates remission status; use only when clinical documentation confirms complete or partial remission
- •Document the type of remission (complete vs. partial) and date remission was achieved for treatment tracking
Clinical Significance
Follicular lymphoma grade IIIb in remission indicates that this aggressive follicular lymphoma subtype has responded to treatment and shows no evidence of active disease. Despite remission status, this code still captures an active cancer diagnosis for risk adjustment purposes because the patient requires ongoing surveillance and carries risk of relapse. Grade IIIb has higher transformation and relapse rates than lower-grade follicular lymphomas, making long-term monitoring essential.
Documentation Requirements
- ✓Explicit physician documentation stating the patient is in remission (complete or partial)
- ✓Most recent imaging results (PET/CT) showing no evidence of active disease
- ✓Date remission was achieved and type of remission (complete vs. partial)
- ✓Original pathology confirming grade IIIb histology
- ✓Ongoing surveillance plan and follow-up schedule
- ✓Documentation of any maintenance therapy (e.g., rituximab maintenance)
Commonly Confused Codes
C82.40 — Follicular lymphoma grade IIIb, unspecified site: Use C82.40 for active disease at an unspecified site; use C82.4A specifically when in remissionZ85.72 — Personal history of non-Hodgkin lymphomas: Use Z85.72 only when treatment is completed and no active follow-up or surveillance for recurrence; C82.4A is for current remission status under active monitoringC82.5A — Diffuse follicle center lymphoma, in remission: Different histologic subtype; verify the lymphoma type is specifically grade IIIb follicular