C83.90

Non-follicular (diffuse) lymphoma, unspecified, unspecified site

Billable / specificHCC V28 21

C83.90 is a billable, specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes in FY2027.

Inclusion terms

Includes (from C83)

  • Note: Functional activity
  • Note: 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.
  • Note: Morphology [Histology]
  • Note: 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.
  • Note: Primary malignant neoplasms overlapping site boundaries
  • Note: 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.
  • Note: Malignant neoplasm of ectopic tissue
  • Note: 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).

Excludes1

Not coded here — never report together with this code.

  • personal history of non-Hodgkin lymphoma (Z85.72) (from C83)

Excludes2

Not included here — may be reported together when both conditions exist.

  • Kaposi's sarcoma of lymph nodes (C46.3) (from C83)
  • secondary and unspecified neoplasm of lymph nodes (C77.-) (from C83)
  • secondary neoplasm of bone marrow (C79.52) (from C83)
  • secondary neoplasm of spleen (C78.89) (from C83)

Parent code

  • C83.9Non-follicular (diffuse) lymphoma, unspecifiedHeader

Related codes

  • C83.91Non-follicular (diffuse) lymphoma, unspecified, lymph nodes of head, face, and neckBillable
  • C83.92Non-follicular (diffuse) lymphoma, unspecified, intrathoracic lymph nodesBillable
  • C83.93Non-follicular (diffuse) lymphoma, unspecified, intra-abdominal lymph nodesBillable
  • C83.94Non-follicular (diffuse) lymphoma, unspecified, lymph nodes of axilla and upper limbBillable
  • C83.95Non-follicular (diffuse) lymphoma, unspecified, lymph nodes of inguinal region and lower limbBillable
  • C83.96Non-follicular (diffuse) lymphoma, unspecified, intrapelvic lymph nodesBillable
  • C83.97Non-follicular (diffuse) lymphoma, unspecified, spleenBillable
  • C83.98Non-follicular (diffuse) lymphoma, unspecified, lymph nodes of multiple sitesBillable
  • C83.99Non-follicular (diffuse) lymphoma, unspecified, extranodal and solid organ sitesBillable
  • C83.9ANon-follicular (diffuse) lymphoma, unspecified, in remissionBillable

Browse