ICD-10-CM › C00-D49 › C81-C96 › C84 Mature T/NK-cell lymphomas › C84.4
Peripheral T-cell lymphoma, not elsewhere classified
Not billableICD-10-CM diagnosis code.
This code exists but cannot be submitted on its own. It groups the more specific codes beneath it.
Submit one of these 11 more specific codes instead:
- C84.40 Peripheral T-cell lymphoma, not elsewhere classified, unspecified site
- C84.41 Peripheral T-cell lymphoma, not elsewhere classified, lymph nodes of head, face, and neck
- C84.42 Peripheral T-cell lymphoma, not elsewhere classified, intrathoracic lymph nodes
- C84.43 Peripheral T-cell lymphoma, not elsewhere classified, intra-abdominal lymph nodes
- C84.44 Peripheral T-cell lymphoma, not elsewhere classified, lymph nodes of axilla and upper limb
- C84.45 Peripheral T-cell lymphoma, not elsewhere classified, lymph nodes of inguinal region and lower limb
- C84.46 Peripheral T-cell lymphoma, not elsewhere classified, intrapelvic lymph nodes
- C84.47 Peripheral T-cell lymphoma, not elsewhere classified, spleen
- C84.48 Peripheral T-cell lymphoma, not elsewhere classified, lymph nodes of multiple sites
- C84.49 Peripheral T-cell lymphoma, not elsewhere classified, extranodal and solid organ sites
- C84.4A Peripheral T-cell lymphoma, not elsewhere classified, in remission
What has happened to this code
Every change the publisher made, from 2012 to now. Entries marked draft are from the pre-implementation releases: ICD-10 took effect on 1 October 2015, so nothing before FY2016 was ever valid on a claim.
- FY2012 Added to the draft code set draft Peripheral T-cell lymphoma, not classified
-
FY2023
Description revised
Peripheral T-cell lymphoma, not classifiedPeripheral T-cell lymphoma, not elsewhere classified
Official coding rules
Published by CDC for FY2027. A rule attached to a category binds every code beneath it, so the rules inherited from this code's ancestors are shown with the code they come from.
Inherited from C84 Mature T/NK-cell lymphomas
Excludes1 - never coded here
- personal history of non-Hodgkin lymphoma (Z85.72)
Inherited from the C81-C96 section Malignant neoplasms of lymphoid, hematopoietic and related tissue (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)
How CDC's index refers to this code
Wording from the official alphabetic index. Much of it appears nowhere in the code description, which is why a search for the everyday phrase so often finds nothing.
- Lymphomatosis
- Lymphosarcoma
- Lennert's lymphoma
- Lymphoma > non-Hodgkin
- Non-Hodgkin lymphoma NEC
- Lymphoma > Lennert's
- Lymphoma > lymphoepithelioid
- Lymphoma > mature T-cell NEC
- Lymphoma > peripheral T-cell NEC
Codes in the same group
| Code | Description | Status |
|---|---|---|
| C84.0 | Mycosis fungoides | Not billable |
| C84.1 | Sezary disease | Not billable |
| C84.6 | Anaplastic large cell lymphoma, ALK-positive | Not billable |
| C84.7 | Anaplastic large cell lymphoma, ALK-negative | Not billable |
| C84.9 | Mature T/NK-cell lymphomas, unspecified | Not billable |
| C84.A | Cutaneous T-cell lymphoma, unspecified | Not billable |
| C84.Z | Other mature T/NK-cell lymphomas | Not billable |