C83.9 – Non-follicular (diffuse) lymphoma, unspecified

ICD-10-CM 2027 diagnosis code · Malignant neoplasms of lymphoid, hematopoietic and related tissue

Non-billable header

ICD-10-CM code C83.9
Code
C83.9 (claims format: C839)
Description
Non-follicular (diffuse) lymphoma, unspecified
Billable
No – use a more specific code below
Valid for
Dates of service October 1, 2026 – September 30, 2027 (FY2027)
Chapter
2. Neoplasms (C00-D49)
Block
C81-C96 Malignant neoplasms of lymphoid, hematopoietic and related tissue
Parent codes
C83

Billable codes under C83.9

C83.9 is a header code and cannot be used on claims. Choose the most specific code:

Notes inherited from parent codes

Instructional notes at a category or block level apply to every code below it.

C83 – Non-follicular lymphoma

Excludes1 (not coded here):
  • personal history of non-Hodgkin lymphoma (Z85.72)

Block C81-C96

Excludes2 (not included here):
  • 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)

Index terms for C83.9

Entries in the ICD-10-CM alphabetic index that lead to this code:

Related codes in C83

Frequently asked questions

What is ICD-10 code C83.9?

C83.9 is the ICD-10-CM code for non-follicular (diffuse) lymphoma, unspecified, in the block C81-C96 (Malignant neoplasms of lymphoid, hematopoietic and related tissue).

Is C83.9 a billable code?

No. C83.9 is a header code with more specific child codes; report one of the billable codes listed above.

What category does C83.9 belong to?

It belongs to category C83 – Non-follicular lymphoma.

Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.