ICD-10-CM 2027 diagnosis code
C82Follicular lymphoma
Not billable — use a more specific code
C82 is a header code, so it can't be reported by itself. Choose one of the 9 more specific codes beneath it.
Code unchanged since ICD-10-CM took effect on October 1, 2015. Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data
About C82
C82 is the ICD-10-CM diagnosis code for follicular lymphoma. It belongs to block C81-C96 (malignant neoplasms of lymphoid, hematopoietic and related tissue) and chapter 2 (neoplasms). It is a header code, so it can't be reported by itself; one of its 9 subcodes must be used instead.
To report this condition, pick the subcode that matches the documentation: C82.0 (grade I), C82.1 (grade II), C82.2 (grade III, unspecified), C82.3 (grade IIIa), C82.4 (grade IIIb), C82.5 (lymphoma), C82.6 (lymphoma), C82.8 (lymphoma) and 1 more.
Don't report C82 together with the conditions in its Excludes1 note: mature T/NK-cell lymphomas (C84.-) and personal history of non-Hodgkin lymphoma (Z85.72).
It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.
Specific codes under C82
- C82.0Follicular lymphoma grade I
- 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
- C82.1Follicular lymphoma grade II
- C82.10Follicular lymphoma grade II, unspecified siteBillable
- C82.11Follicular lymphoma grade II, lymph nodes of head, face, and neckBillable
- C82.12Follicular lymphoma grade II, intrathoracic lymph nodesBillable
- C82.13Follicular lymphoma grade II, intra-abdominal lymph nodesBillable
- C82.14Follicular lymphoma grade II, lymph nodes of axilla and upper limbBillable
- C82.15Follicular lymphoma grade II, lymph nodes of inguinal region and lower limbBillable
- C82.16Follicular lymphoma grade II, intrapelvic lymph nodesBillable
- C82.17Follicular lymphoma grade II, spleenBillable
- C82.18Follicular lymphoma grade II, lymph nodes of multiple sitesBillable
- C82.19Follicular lymphoma grade II, extranodal and solid organ sitesBillable
- C82.1AFollicular lymphoma grade II, in remissionBillable
- C82.2Follicular lymphoma grade III, unspecified
- C82.20Follicular lymphoma grade III, unspecified, unspecified siteBillable
- C82.21Follicular lymphoma grade III, unspecified, lymph nodes of head, face, and neckBillable
- C82.22Follicular lymphoma grade III, unspecified, intrathoracic lymph nodesBillable
- C82.23Follicular lymphoma grade III, unspecified, intra-abdominal lymph nodesBillable
- C82.24Follicular lymphoma grade III, unspecified, lymph nodes of axilla and upper limbBillable
- C82.25Follicular lymphoma grade III, unspecified, lymph nodes of inguinal region and lower limbBillable
- C82.26Follicular lymphoma grade III, unspecified, intrapelvic lymph nodesBillable
- C82.27Follicular lymphoma grade III, unspecified, spleenBillable
- C82.28Follicular lymphoma grade III, unspecified, lymph nodes of multiple sitesBillable
- C82.29Follicular lymphoma grade III, unspecified, extranodal and solid organ sitesBillable
- C82.2AFollicular lymphoma grade III, unspecified, in remissionBillable
- C82.3Follicular lymphoma grade IIIa
- C82.30Follicular lymphoma grade IIIa, unspecified siteBillable
- C82.31Follicular lymphoma grade IIIa, lymph nodes of head, face, and neckBillable
- C82.32Follicular lymphoma grade IIIa, intrathoracic lymph nodesBillable
- C82.33Follicular lymphoma grade IIIa, intra-abdominal lymph nodesBillable
- C82.34Follicular lymphoma grade IIIa, lymph nodes of axilla and upper limbBillable
- C82.35Follicular lymphoma grade IIIa, lymph nodes of inguinal region and lower limbBillable
- C82.36Follicular lymphoma grade IIIa, intrapelvic lymph nodesBillable
- C82.37Follicular lymphoma grade IIIa, spleenBillable
- C82.38Follicular lymphoma grade IIIa, lymph nodes of multiple sitesBillable
- C82.39Follicular lymphoma grade IIIa, extranodal and solid organ sitesBillable
- C82.3AFollicular lymphoma grade IIIa, in remissionBillable
- C82.4Follicular lymphoma grade IIIb
- C82.40Follicular lymphoma grade IIIb, unspecified siteBillable
- C82.41Follicular lymphoma grade IIIb, lymph nodes of head, face, and neckBillable
- C82.42Follicular lymphoma grade IIIb, intrathoracic lymph nodesBillable
- C82.43Follicular lymphoma grade IIIb, intra-abdominal lymph nodesBillable
- C82.44Follicular lymphoma grade IIIb, lymph nodes of axilla and upper limbBillable
- C82.45Follicular lymphoma grade IIIb, lymph nodes of inguinal region and lower limbBillable
- C82.46Follicular lymphoma grade IIIb, intrapelvic lymph nodesBillable
- C82.47Follicular lymphoma grade IIIb, spleenBillable
- C82.48Follicular lymphoma grade IIIb, lymph nodes of multiple sitesBillable
- C82.49Follicular lymphoma grade IIIb, extranodal and solid organ sitesBillable
- C82.4AFollicular lymphoma grade IIIb, in remissionBillable
- C82.5Diffuse follicle center lymphoma
- C82.50Diffuse follicle center lymphoma, unspecified siteBillable
- C82.51Diffuse follicle center lymphoma, lymph nodes of head, face, and neckBillable
- C82.52Diffuse follicle center lymphoma, intrathoracic lymph nodesBillable
- C82.53Diffuse follicle center lymphoma, intra-abdominal lymph nodesBillable
- C82.54Diffuse follicle center lymphoma, lymph nodes of axilla and upper limbBillable
- C82.55Diffuse follicle center lymphoma, lymph nodes of inguinal region and lower limbBillable
- C82.56Diffuse follicle center lymphoma, intrapelvic lymph nodesBillable
- C82.57Diffuse follicle center lymphoma, spleenBillable
- C82.58Diffuse follicle center lymphoma, lymph nodes of multiple sitesBillable
- C82.59Diffuse follicle center lymphoma, extranodal and solid organ sitesBillable
- C82.5ADiffuse follicle center lymphoma, in remissionBillable
- C82.6Cutaneous follicle center lymphoma
- C82.60Cutaneous follicle center lymphoma, unspecified siteBillable
- C82.61Cutaneous follicle center lymphoma, lymph nodes of head, face, and neckBillable
- C82.62Cutaneous follicle center lymphoma, intrathoracic lymph nodesBillable
- C82.63Cutaneous follicle center lymphoma, intra-abdominal lymph nodesBillable
- C82.64Cutaneous follicle center lymphoma, lymph nodes of axilla and upper limbBillable
- C82.65Cutaneous follicle center lymphoma, lymph nodes of inguinal region and lower limbBillable
- C82.66Cutaneous follicle center lymphoma, intrapelvic lymph nodesBillable
- C82.67Cutaneous follicle center lymphoma, spleenBillable
- C82.68Cutaneous follicle center lymphoma, lymph nodes of multiple sitesBillable
- C82.69Cutaneous follicle center lymphoma, extranodal and solid organ sitesBillable
- C82.6ACutaneous follicle center lymphoma, in remissionBillable
- C82.8Other types of follicular lymphoma
- C82.80Other types of follicular lymphoma, unspecified siteBillable
- C82.81Other types of follicular lymphoma, lymph nodes of head, face, and neckBillable
- C82.82Other types of follicular lymphoma, intrathoracic lymph nodesBillable
- C82.83Other types of follicular lymphoma, intra-abdominal lymph nodesBillable
- C82.84Other types of follicular lymphoma, lymph nodes of axilla and upper limbBillable
- C82.85Other types of follicular lymphoma, lymph nodes of inguinal region and lower limbBillable
- C82.86Other types of follicular lymphoma, intrapelvic lymph nodesBillable
- C82.87Other types of follicular lymphoma, spleenBillable
- C82.88Other types of follicular lymphoma, lymph nodes of multiple sitesBillable
- C82.89Other types of follicular lymphoma, extranodal and solid organ sitesBillable
- C82.8AOther types of follicular lymphoma, in remissionBillable
- C82.9Follicular lymphoma, unspecified
- C82.90Follicular lymphoma, unspecified, unspecified siteBillable
- C82.91Follicular lymphoma, unspecified, lymph nodes of head, face, and neckBillable
- C82.92Follicular lymphoma, unspecified, intrathoracic lymph nodesBillable
- C82.93Follicular lymphoma, unspecified, intra-abdominal lymph nodesBillable
- C82.94Follicular lymphoma, unspecified, lymph nodes of axilla and upper limbBillable
- C82.95Follicular lymphoma, unspecified, lymph nodes of inguinal region and lower limbBillable
- C82.96Follicular lymphoma, unspecified, intrapelvic lymph nodesBillable
- C82.97Follicular lymphoma, unspecified, spleenBillable
- C82.98Follicular lymphoma, unspecified, lymph nodes of multiple sitesBillable
- C82.99Follicular lymphoma, unspecified, extranodal and solid organ sitesBillable
- C82.9AFollicular lymphoma, unspecified, in remissionBillable
Coding notes
Notes that apply from higher levels
Instructions written at a parent level also apply to C82.
Broader instructions also apply from C81-C96 Malignant neoplasms of lymphoid, hematopoietic and related tissue and Chapter 2: Neoplasms.
Codes whose notes reference C82
Code history
- 2016
- 2017
- 2018
- 2019
- 2020
- 2021
- 2022
- 2023
- 2024
- 2025
- 2026
- 2027
- FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
- No changes since FY2016.
Common questions about C82
Is C82 billable?
- No. C82 is a header code. Report one of its more specific subcodes instead.