C84

Non-billable

Mature T/NK-cell lymphomas

Mature T/NK-cell lymphomas

This is a header/category code. For billing purposes, use a more specific child code from the list below.

Status

Non-billable / Header

Block

C81-C96

Child Codes

8

Coding Notes

Excludes 1

Codes that cannot be used together with this code (mutual exclusion)

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

Excludes 2

Conditions not included here, but the patient may have both

  • 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)

Child Codes (8)

Also Known As / Clinical Terms

Frequently Asked Questions

What is ICD-10 code C84?

ICD-10-CM code C84 represents "Mature T/NK-cell lymphomas". It is a non-billable header code — use a more specific child code for billing purposes.

Is C84 a billable code?

No, C84 is a non-billable header code. You need to use one of its more specific child codes for billing. There are 8 child codes under C84.

What chapter is C84 in?

C84 is in Chapter 2: Neoplasms (codes C00-D49).

What codes cannot be used with C84?

C84 has Excludes1 notes indicating codes that cannot be used together with it, including: personal history of non-Hodgkin lymphoma (Z85.72).

What are the subcategories under C84?

C84 has 8 child codes, including: C84.0 (Mycosis fungoides), C84.1 (Sezary disease), C84.4 (Peripheral T-cell lymphoma, not elsewhere classified), C84.6 (Anaplastic large cell lymphoma, ALK-positive), and 4 more.

What are the UMLS CUIs for C84?

C84 is linked to 1 UMLS Concept Unique Identifier: C5551485. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.

Automate ICD-10 Coding With AI

Send clinical text to the AutoICD API and get back structured ICD-10 codes with confidence scores. Integrates into any EHR or billing system in minutes.

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.