C82.88
BillableOther types of follicular lymphoma, lymph nodes of multiple sites
Last updated: FY2026 ICD-10-CM (Oct 1, 2025 – Sep 30, 2026) | CMS-HCC V28 (100% phase-in, PY2026)
Is C82.88 an HCC code?
Yes. C82.88 maps to Lymphoma and Other Cancers under the CMS-HCC V28 risk adjustment model (and Lymphoma and Other Cancers under V24).
HCC Category Mapping
RAF weights shown are the community, non-dual, aged base weights from the CMS risk adjustment model file. Actual per-patient RAF contribution depends on member segment, interactions, and the model year used by the payer. V28 is the CMS-HCC model phased in over payment years 2024–2026; V24 remains in use during the transition and for historical data.
MEAT Criteria for C82.88
For C82.88to count as a valid HCC diagnosis in a given encounter, the provider's documentation must show MEAT: Monitor, Evaluate, Assess, or Treat. A diagnosis from a prior year does not carry forward automatically — it has to be re-documented and supported each calendar year.
- MMonitor: signs, symptoms, disease progression, or lab trending documented in the note
- EEvaluate: test results, medication response, or physical findings reviewed by the provider
- AAssess: explicit mention in the assessment or plan with acknowledgment of status
- TTreat: medication, referral, procedure, therapy, or counseling tied to the diagnosis
Only one of M/E/A/T is required to support the code, but the documentation must be specific enough to show that the provider actually addressed C82.88 during that encounter — not just copy-forwarded from a problem list.
What This Code Means
C82.88 is the ICD-10-CM diagnosis code for other types of follicular lymphoma, lymph nodes of multiple sites. A type of follicular lymphoma (blood cancer) affecting lymph nodes in multiple locations throughout the body. C82.88 sits in the ICD-10-CM chapter for neoplasms (c00-d49), within the section covering malignant neoplasms of lymphoid, hematopoietic and related tissue (c81-c96).
Under the CMS-HCC V28 risk adjustment model, C82.88 maps to Lymphoma and Other Cancers (HCC 21) with a community, non-dual, aged base RAF weight of 0.671. Under the older V24 model, C82.88 mapped to the same category but with a base RAF weight of 0.675 — V28 recalibrated weights across the entire model. V28 is the CMS-HCC risk adjustment model that reached 100% phase-in for payment year 2026, replacing V24 which was used during the PY2024–PY2025 transition.
Use this code when follicular lymphoma involves lymph nodes at two or more different anatomical sites. Because C82.88 maps to a payment HCC, the provider's documentation must satisfy MEAT criteria (Monitor, Evaluate, Assess, or Treat) for the encounter to count toward the patient's Medicare Advantage risk adjustment score. When documentation is ambiguous, coders should issue a provider query rather than assume the highest-specificity variant.
HCC Buddy maintains structured V28 and V24 mapping, RAF weights, and MEAT documentation criteria for C82.88 sourced directly from the CMS-HCC risk adjustment model files and the CMS ICD-10-CM code set.
Coding Tips
- •Use this code when follicular lymphoma involves lymph nodes at two or more different anatomical sites
- •Verify documentation specifies 'multiple sites' rather than a single site to ensure accurate code selection
Clinical Significance
Other types of follicular lymphoma involving lymph nodes at multiple sites indicates a rare follicular variant with widespread nodal disease, typically stage III or IV. Multi-site involvement suggests systemic disease requiring systemic treatment. The 'other types' designation encompasses follicular lymphoma variants that do not fit standard grading categories, and these unusual variants with widespread disease may require specialized treatment approaches.
Documentation Requirements
- ✓Pathology confirming the specific follicular lymphoma variant
- ✓Imaging documenting involvement of at least two distinct anatomic nodal regions
- ✓Specification of all involved nodal sites
- ✓Staging documentation reflecting multi-site disease
- ✓Documentation of the variant type that qualifies as 'other'
- ✓Treatment plan addressing systemic disease
Commonly Confused Codes
- •C82.58 — Diffuse follicle center lymphoma, lymph nodes of multiple sites: Specific diffuse type
- •C82.89 — Other types of follicular lymphoma, extranodal and solid organ sites: Distinguish nodal from extranodal involvement
- •C82.98 — Follicular lymphoma, unspecified, lymph nodes of multiple sites: Less specific code