Other specified and unspecified types of non-Hodgkin lymphoma (C85) ICD-10-CM
The C85 code range covers other specified and unspecified types of non-hodgkin lymphoma with 49 ICD-10-CM diagnosis codes. 44 of them are billable and valid for claim submission in fiscal year 2027, and the category headers group them but cannot themselves be billed.
Type 1 Excludes
A type 1 excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
Codes in the C85 Range 49 codes · 44 billable
- C85 Other specified and unspecified types of non-Hodgkin lymphomaNon-billable
- C85.1 Unspecified B-cell lymphomaNon-billable
- C85.10 Unspecified B-cell lymphoma, unspecified site
- C85.11 Unspecified B-cell lymphoma, lymph nodes of head, face, and neck
- C85.12 Unspecified B-cell lymphoma, intrathoracic lymph nodes
- C85.13 Unspecified B-cell lymphoma, intra-abdominal lymph nodes
- C85.14 Unspecified B-cell lymphoma, lymph nodes of axilla and upper limb
- C85.15 Unspecified B-cell lymphoma, lymph nodes of inguinal region and lower limb
- C85.16 Unspecified B-cell lymphoma, intrapelvic lymph nodes
- C85.17 Unspecified B-cell lymphoma, spleen
- C85.18 Unspecified B-cell lymphoma, lymph nodes of multiple sites
- C85.19 Unspecified B-cell lymphoma, extranodal and solid organ sites
- C85.1A Unspecified B-cell lymphoma, in remission
- C85.2 Mediastinal (thymic) large B-cell lymphomaNon-billable
- C85.20 Mediastinal (thymic) large B-cell lymphoma, unspecified site
- C85.21 Mediastinal (thymic) large B-cell lymphoma, lymph nodes of head, face, and neck
- C85.22 Mediastinal (thymic) large B-cell lymphoma, intrathoracic lymph nodes
- C85.23 Mediastinal (thymic) large B-cell lymphoma, intra-abdominal lymph nodes
- C85.24 Mediastinal (thymic) large B-cell lymphoma, lymph nodes of axilla and upper limb
- C85.25 Mediastinal (thymic) large B-cell lymphoma, lymph nodes of inguinal region and lower limb
- C85.26 Mediastinal (thymic) large B-cell lymphoma, intrapelvic lymph nodes
- C85.27 Mediastinal (thymic) large B-cell lymphoma, spleen
- C85.28 Mediastinal (thymic) large B-cell lymphoma, lymph nodes of multiple sites
- C85.29 Mediastinal (thymic) large B-cell lymphoma, extranodal and solid organ sites
- C85.2A Mediastinal (thymic) large B-cell lymphoma, in remission
- C85.8 Other specified types of non-Hodgkin lymphomaNon-billable
- C85.80 Other specified types of non-Hodgkin lymphoma, unspecified site
- C85.81 Other specified types of non-Hodgkin lymphoma, lymph nodes of head, face, and neck
- C85.82 Other specified types of non-Hodgkin lymphoma, intrathoracic lymph nodes
- C85.83 Other specified types of non-Hodgkin lymphoma, intra-abdominal lymph nodes
- C85.84 Other specified types of non-Hodgkin lymphoma, lymph nodes of axilla and upper limb
- C85.85 Other specified types of non-Hodgkin lymphoma, lymph nodes of inguinal region and lower limb
- C85.86 Other specified types of non-Hodgkin lymphoma, intrapelvic lymph nodes
- C85.87 Other specified types of non-Hodgkin lymphoma, spleen
- C85.88 Other specified types of non-Hodgkin lymphoma, lymph nodes of multiple sites
- C85.89 Other specified types of non-Hodgkin lymphoma, extranodal and solid organ sites
- C85.8A Other specified types of non-Hodgkin lymphoma, in remission
- C85.9 Non-Hodgkin lymphoma, unspecifiedNon-billable
- C85.90 Non-Hodgkin lymphoma, unspecified, unspecified site
- C85.91 Non-Hodgkin lymphoma, unspecified, lymph nodes of head, face, and neck
- C85.92 Non-Hodgkin lymphoma, unspecified, intrathoracic lymph nodes
- C85.93 Non-Hodgkin lymphoma, unspecified, intra-abdominal lymph nodes
- C85.94 Non-Hodgkin lymphoma, unspecified, lymph nodes of axilla and upper limb
- C85.95 Non-Hodgkin lymphoma, unspecified, lymph nodes of inguinal region and lower limb
- C85.96 Non-Hodgkin lymphoma, unspecified, intrapelvic lymph nodes
- C85.97 Non-Hodgkin lymphoma, unspecified, spleen
- C85.98 Non-Hodgkin lymphoma, unspecified, lymph nodes of multiple sites
- C85.99 Non-Hodgkin lymphoma, unspecified, extranodal and solid organ sites
- C85.9A Non-Hodgkin lymphoma, unspecified, in remission
Clinical Terms in This Code Range
Definitions from the National Library of Medicine for conditions coded in the C85 range.
B-Cell Non-Hodgkin Lymphoma
The most common type of non-Hodgkin lymphoma. It includes the most frequently seen morphologic variants which are: diffuse large B-cell lymphoma, follicular lymphoma, small lymphocytic lymphoma and marginal zone B-cell lymphoma.
Lymphoma, Non-Hodgkin
Any of a group of malignant tumors of lymphoid tissue that differ from HODGKIN DISEASE, being more heterogeneous with respect to malignant cell lineage, clinical course, prognosis, and therapy. The only common feature among these tumors is the absence of giant REED-STERNBERG CELLS, a characteristic of Hodgkin's disease.
Primary Mediastinal (Thymic) Large B-Cell Lymphoma
A large B-cell non-Hodgkin lymphoma arising in the mediastinum. Morphologically it is characterized by a massive diffuse lymphocytic proliferation associated with compartmentalizing fibrosis. Response to intensive chemotherapy, with or without radiotherapy, is usually good. (WHO, 2001)
About the C85 Code Range
These codes describe non-Hodgkin lymphoma, a malignant growth of lymphoid tissue. They distinguish named forms from lymphoma whose type is unspecified.
C85.1 identifies B-cell lymphoma without a more specific type. C85.2 identifies large B-cell lymphoma described as mediastinal or thymic, referring to the central chest or thymus. C85.8 covers other specified types, while C85.9 leaves the type unspecified.
Within each group, subdivisions distinguish the affected site, including lymph node regions, the spleen, and sites outside lymph nodes. Each group also has an in-remission subdivision.
Questions About This Page
How many billable codes are in the C85 range?
Of the 49 codes in this range, 44 are billable and valid for claim submission from October 1, 2026 through September 30, 2027. Category header codes group them but cannot be reported on claims.
What does the C85 range classify?
The range classifies other specified and unspecified types of non-hodgkin lymphoma. Each code links to its own reference page with billing status, MS-DRG grouping, coding notes, and clinical information.
Related References
Source: CMS FY 2027 ICD-10-CM Tabular List and order file, effective October 1, 2026 through September 30, 2027.
