C84.9
Non-billableMature T/NK-cell lymphomas, unspecified
Mature T/NK-cell lymphomas, unspecified
This is a header/category code. For billing purposes, use a more specific child code from the list below.
Coding Notes
Inclusion Terms
Alternative clinical terms for this condition
- NK/T cell lymphoma NOS
Excludes 1
Codes that cannot be used together with this code (mutual exclusion)
Child Codes (11)
C84.90Mature T/NK-cell lymphomas, unspecified, unspecified site
C84.91Mature T/NK-cell lymph, unsp, nodes of head, face, and neck
C84.92Mature T/NK-cell lymphomas, unsp, intrathoracic lymph nodes
C84.93Mature T/NK-cell lymphomas, unsp, intra-abd lymph nodes
C84.94Mature T/NK-cell lymph, unsp, nodes of axilla and upper limb
C84.95Mature T/NK-cell lymph, unsp, nodes of ing rgn and low limb
C84.96Mature T/NK-cell lymphomas, unsp, intrapelvic lymph nodes
C84.97Mature T/NK-cell lymphomas, unspecified, spleen
C84.98Mature T/NK-cell lymphomas, unsp, lymph nodes mult site
C84.99Mature T/NK-cell lymph, unsp, extrnod and solid organ sites
C84.9AMature T/NK-cell lymphomas, unspecified, in remission
Also Known As / Clinical Terms
UMLS
- Angiocentric natural killer cell and T-cell malignant lymphoma nasal typeC0558916
- Angiocentric natural killer cell and T-cell malignant lymphoma nasal type (morphologic abnormality)C0558916
- NK/T cell lymphoma NOSC0558916
- NK/T-cell lymphoma, nasal and nasal-typeC0558916
- Natural killer (NK)/T-cell lymphoma, nasal and nasal-typeC0558916
- Natural killer-/T-cell lymphoma, nasal and nasal-typeC0558916
- T/NK-cell lymphomaC0558916
- T/NK-cell lymphoma, nasal and nasal typeC0558916
- Mature T/NK-cell lymphomas, unspecifiedC5779801
Frequently Asked Questions
What is ICD-10 code C84.9?
ICD-10-CM code C84.9 represents "Mature T/NK-cell lymphomas, unspecified". It is a non-billable header code — use a more specific child code for billing purposes.
Is C84.9 a billable code?
No, C84.9 is a non-billable header code. You need to use one of its more specific child codes for billing. There are 11 child codes under C84.9.
What chapter is C84.9 in?
C84.9 is in Chapter 2: Neoplasms (codes C00-D49).
What codes cannot be used with C84.9?
C84.9 has Excludes1 notes indicating codes that cannot be used together with it, including: personal history of non-Hodgkin lymphoma (Z85.72); mature T-cell lymphoma, not elsewhere classified (C84.4-).
What are the subcategories under C84.9?
C84.9 has 11 child codes, including: C84.90 (Mature T/NK-cell lymphomas, unspecified, unspecified site), C84.91 (Mature T/NK-cell lymph, unsp, nodes of head, face, and neck), C84.92 (Mature T/NK-cell lymphomas, unsp, intrathoracic lymph nodes), C84.93 (Mature T/NK-cell lymphomas, unsp, intra-abd lymph nodes), and 7 more.
What are the UMLS CUIs for C84.9?
C84.9 is linked to 2 UMLS Concept Unique Identifiers: C0558916, C5779801. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.
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Includes SNOMED Clinical Terms® (SNOMED CT®) used by permission of SNOMED International. Includes content from the UMLS Metathesaurus, courtesy of the U.S. National Library of Medicine.