C82.0
Follicular lymphoma grade I
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- C82.00Follicular lymphoma grade I, unspecified siteBillable
- C82.01Follicular lymphoma grade I, lymph nodes of head, face, and neckBillable
- C82.02Follicular lymphoma grade I, intrathoracic lymph nodesBillable
- C82.03Follicular lymphoma grade I, intra-abdominal lymph nodesBillable
- C82.04Follicular lymphoma grade I, lymph nodes of axilla and upper limbBillable
- C82.05Follicular lymphoma grade I, lymph nodes of inguinal region and lower limbBillable
- C82.06Follicular lymphoma grade I, intrapelvic lymph nodesBillable
- C82.07Follicular lymphoma grade I, spleenBillable
- C82.08Follicular lymphoma grade I, lymph nodes of multiple sitesBillable
- C82.09Follicular lymphoma grade I, extranodal and solid organ sitesBillable
- C82.0AFollicular lymphoma grade I, in remissionBillable
This code does not map to a risk-adjusting HCC in the loaded models.
Coding notes
Excludes 1 never coded together · Excludes 2 may co-exist
Functional activity All neoplasms are classified in this chapter, whether they are functionally active or not. An additional code from Chapter 4 may be used, to identify functional activity associated with any neoplasm. Morphology [Histology] Chapter 2 classifies neoplasms primarily by site (topography), with broad groupings for behavior, malignant, in situ, benign, etc. The Table of Neoplasms should be used to identify the correct topography code. In a few cases, such as for malignant melanoma and certain neuroendocrine tumors, the morphology (histologic type) is included in the category and codes. Primary malignant neoplasms overlapping site boundaries A primary malignant neoplasm that overlaps two or more contiguous (next to each other) sites should be classified to the subcategory/code .8 ('overlapping lesion'), unless the combination is specifically indexed elsewhere. For multiple neoplasms of the same site that are not contiguous, such as tumors in different quadrants of the same breast, codes for each site should be assigned. Malignant neoplasm of ectopic tissue Malignant neoplasms of ectopic tissue are to be coded to the site mentioned, e.g., ectopic pancreatic malignant neoplasms are coded to pancreas, unspecified (C25.9). (C00-C96) Malignant neoplasms (C00-C96) (C00-C75) Malignant neoplasms, stated or presumed to be primary (of specified sites), and certain specified histologies, except neuroendocrine, and of lymphoid, hematopoietic and related tissue (C00-C75)
Official Guidelines for C82.0
FY 2026 ›Subsections
- I.C.2.aAdmission/Encounter for treatment of primary site
- I.C.2.bAdmission/Encounter for treatment of secondary site
- I.C.2.cCoding and sequencing of complications
- I.C.2.dPrimary malignancy previously excised
- I.C.2.eAdmissions/Encounters involving antineoplastic chemotherapy, immunotherapy and radiation therapy
- I.C.2.fAdmission/encounter to determine extent of malignancy
- I.C.2.gSymptoms, signs, and abnormal findings listed in Chapter 18 associated with neoplasms
- I.C.2.hAdmission/encounter for pain control/management
- I.C.2.iMalignancy in two or more noncontiguous sites
- I.C.2.jDisseminated malignant neoplasm, unspecified
- I.C.2.kMalignant neoplasm without specification of site
- I.C.2.lSequencing of neoplasm codes
- I.C.2.mCurrent malignancy versus personal history of malignancy
- I.C.2.nLeukemia, Multiple Myeloma, and Malignant Plasma Cell
- I.C.2.oAftercare following surgery for neoplasm
- I.C.2.pFollow-up care for completed treatment of a malignancy
- I.C.2.qProphylactic organ removal for prevention of malignancy
- I.C.2.rMalignant neoplasm associated with transplanted organ
- I.C.2.sBreast Implant Associated Anaplastic Large Cell Lymphoma
- I.C.2.tSecondary malignant neoplasm of lymphoid tissue
Sections that reference C82.0
Sections whose FY 2026 text names C82.0, its C82 category, or a range containing it — the chapter guidance above is the authoritative source.