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C82Non-billableSave

C82 - Follicular lymphoma

ICD-10-CM Chapter 2: Neoplasms · C81-C96 Malignant neoplasms of lymphoid, hematopoietic and related tissue (C81-C96) · Top-level category · FY2027

Coding Guidance

C82 is a non-billable heading. Report one of the 9 more specific codes below.

Includes, Excludes and Coding Notes

IncludesFrom C82

Conditions this code covers.

  • follicular lymphoma with or without diffuse areas
Excludes 1 — Not Coded HereFrom C82

Mutually exclusive: these conditions are never reported together with this code.

  • mature T/NK-cell lymphomas (C84.-)
  • personal history of non-Hodgkin lymphoma (Z85.72)
Excludes 2 — Not Included HereFrom C81-C96 Malignant neoplasms of lymphoid, hematopoietic and related tissue (C81-C96)

Not part of this code; report both codes when the patient has both conditions.

  • Kaposi's sarcoma of lymph nodes (C46.3)
  • secondary and unspecified neoplasm of lymph nodes (C77.-)
  • secondary neoplasm of bone marrow (C79.52)
  • secondary neoplasm of spleen (C78.89)
NotesFrom Chapter C00-D49

Instructional notes from the ICD-10-CM tabular list.

  • 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).

More Specific Codes (9)

C82.0Follicular lymphoma grade I→C82.1Follicular lymphoma grade II→C82.2Follicular lymphoma grade III, unspecified→C82.3Follicular lymphoma grade IIIa→C82.4Follicular lymphoma grade IIIb→C82.5Diffuse follicle center lymphoma→C82.6Cutaneous follicle center lymphoma→C82.8Other types of follicular lymphoma→C82.9Follicular lymphoma, unspecified→

Related condition guides

Documentation requirements, coding pitfalls and FAQs for conditions coded with C82.