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ICD-10 C84.4 - Peripheral T-cell lymphoma, not classified
Chapter 2 Section C81-C96

C84.4

ICD-10 Not billable

Peripheral T-cell lymphoma, not classified

Inclusion terms:
  • Lennert's lymphoma
  • Lymphoepithelioid lymphoma
  • Mature T-cell lymphoma, not elsewhere classified
From Chapter 2:
  • 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).
From Section C81-C96:
  • 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)
C84.4 is a "category code," which means it's non-billable. Billable codes require more specificity. Use the list below to navigate to codes that are more specific:
10
C84.40
Peripheral T-cell lymphoma, not classified, unspecified site
Billable
10
C84.41
Peripheral T-cell lymphoma, not classified, lymph nodes of head, face, and neck
Billable
10
C84.42
Peripheral T-cell lymphoma, not classified, intrathoracic lymph nodes
Billable
10
C84.43
Peripheral T-cell lymphoma, not classified, intra-abdominal lymph nodes
Billable
10
C84.44
Peripheral T-cell lymphoma, not classified, lymph nodes of axilla and upper limb
Billable
10
C84.45
Peripheral T-cell lymphoma, not classified, lymph nodes of inguinal region and lower limb
Billable
10
C84.46
Peripheral T-cell lymphoma, not classified, intrapelvic lymph nodes
Billable
10
C84.47
Peripheral T-cell lymphoma, not classified, spleen
Billable
10
C84.48
Peripheral T-cell lymphoma, not classified, lymph nodes of multiple sites
Billable
10
C84.49
Peripheral T-cell lymphoma, not classified, extranodal and solid organ sites
Billable
      
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