2021 ICD-10-CM Code C84

Mature T/NK-cell lymphomas

Version 2021

Not Valid for Submission

C84 is a non-specific and non-billable diagnosis code code, consider using a code with a higher level of specificity for a diagnosis of mature t/nk-cell lymphomas. The code is not specific and is NOT valid for the year 2021 for the submission of HIPAA-covered transactions. Category or Header define the heading of a category of codes that may be further subdivided by the use of 4th, 5th, 6th or 7th characters.

ICD-10:C84
Short Description:Mature T/NK-cell lymphomas
Long Description:Mature T/NK-cell lymphomas

Code Classification

Specific Coding for Mature T/NK-cell lymphomas

Non-specific codes like C84 require more digits to indicate the appropriate level of specificity. Consider using any of the following ICD-10 codes with a higher level of specificity when coding for mature t/nk-cell lymphomas:

  • NON-BILLABLE CODE - C84.0 for Mycosis fungoides
  • BILLABLE CODE - Use C84.00 for Mycosis fungoides, unspecified site
  • BILLABLE CODE - Use C84.01 for Mycosis fungoides, lymph nodes of head, face, and neck
  • BILLABLE CODE - Use C84.02 for Mycosis fungoides, intrathoracic lymph nodes
  • BILLABLE CODE - Use C84.03 for Mycosis fungoides, intra-abdominal lymph nodes
  • BILLABLE CODE - Use C84.04 for Mycosis fungoides, lymph nodes of axilla and upper limb
  • BILLABLE CODE - Use C84.05 for Mycosis fungoides, lymph nodes of inguinal region and lower limb
  • BILLABLE CODE - Use C84.06 for Mycosis fungoides, intrapelvic lymph nodes
  • BILLABLE CODE - Use C84.07 for Mycosis fungoides, spleen
  • BILLABLE CODE - Use C84.08 for Mycosis fungoides, lymph nodes of multiple sites
  • BILLABLE CODE - Use C84.09 for Mycosis fungoides, extranodal and solid organ sites
  • NON-BILLABLE CODE - C84.1 for Sezary disease
  • BILLABLE CODE - Use C84.10 for Sezary disease, unspecified site
  • BILLABLE CODE - Use C84.11 for Sezary disease, lymph nodes of head, face, and neck
  • BILLABLE CODE - Use C84.12 for Sezary disease, intrathoracic lymph nodes
  • BILLABLE CODE - Use C84.13 for Sezary disease, intra-abdominal lymph nodes
  • BILLABLE CODE - Use C84.14 for Sezary disease, lymph nodes of axilla and upper limb
  • BILLABLE CODE - Use C84.15 for Sezary disease, lymph nodes of inguinal region and lower limb
  • BILLABLE CODE - Use C84.16 for Sezary disease, intrapelvic lymph nodes
  • BILLABLE CODE - Use C84.17 for Sezary disease, spleen
  • BILLABLE CODE - Use C84.18 for Sezary disease, lymph nodes of multiple sites
  • BILLABLE CODE - Use C84.19 for Sezary disease, extranodal and solid organ sites
  • NON-BILLABLE CODE - C84.4 for Peripheral T-cell lymphoma, not classified
  • BILLABLE CODE - Use C84.40 for Peripheral T-cell lymphoma, not classified, unspecified site
  • BILLABLE CODE - Use C84.41 for Peripheral T-cell lymphoma, not classified, lymph nodes of head, face, and neck
  • BILLABLE CODE - Use C84.42 for Peripheral T-cell lymphoma, not classified, intrathoracic lymph nodes
  • BILLABLE CODE - Use C84.43 for Peripheral T-cell lymphoma, not classified, intra-abdominal lymph nodes
  • BILLABLE CODE - Use C84.44 for Peripheral T-cell lymphoma, not classified, lymph nodes of axilla and upper limb
  • BILLABLE CODE - Use C84.45 for Peripheral T-cell lymphoma, not classified, lymph nodes of inguinal region and lower limb
  • BILLABLE CODE - Use C84.46 for Peripheral T-cell lymphoma, not classified, intrapelvic lymph nodes
  • BILLABLE CODE - Use C84.47 for Peripheral T-cell lymphoma, not classified, spleen
  • BILLABLE CODE - Use C84.48 for Peripheral T-cell lymphoma, not classified, lymph nodes of multiple sites
  • BILLABLE CODE - Use C84.49 for Peripheral T-cell lymphoma, not classified, extranodal and solid organ sites
  • NON-BILLABLE CODE - C84.6 for Anaplastic large cell lymphoma, ALK-positive
  • BILLABLE CODE - Use C84.60 for Anaplastic large cell lymphoma, ALK-positive, unspecified site
  • BILLABLE CODE - Use C84.61 for Anaplastic large cell lymphoma, ALK-positive, lymph nodes of head, face, and neck
  • BILLABLE CODE - Use C84.62 for Anaplastic large cell lymphoma, ALK-positive, intrathoracic lymph nodes
  • BILLABLE CODE - Use C84.63 for Anaplastic large cell lymphoma, ALK-positive, intra-abdominal lymph nodes
  • BILLABLE CODE - Use C84.64 for Anaplastic large cell lymphoma, ALK-positive, lymph nodes of axilla and upper limb
  • BILLABLE CODE - Use C84.65 for Anaplastic large cell lymphoma, ALK-positive, lymph nodes of inguinal region and lower limb
  • BILLABLE CODE - Use C84.66 for Anaplastic large cell lymphoma, ALK-positive, intrapelvic lymph nodes
  • BILLABLE CODE - Use C84.67 for Anaplastic large cell lymphoma, ALK-positive, spleen
  • BILLABLE CODE - Use C84.68 for Anaplastic large cell lymphoma, ALK-positive, lymph nodes of multiple sites
  • BILLABLE CODE - Use C84.69 for Anaplastic large cell lymphoma, ALK-positive, extranodal and solid organ sites
  • NON-BILLABLE CODE - C84.7 for Anaplastic large cell lymphoma, ALK-negative
  • BILLABLE CODE - Use C84.70 for Anaplastic large cell lymphoma, ALK-negative, unspecified site
  • BILLABLE CODE - Use C84.71 for Anaplastic large cell lymphoma, ALK-negative, lymph nodes of head, face, and neck
  • BILLABLE CODE - Use C84.72 for Anaplastic large cell lymphoma, ALK-negative, intrathoracic lymph nodes
  • BILLABLE CODE - Use C84.73 for Anaplastic large cell lymphoma, ALK-negative, intra-abdominal lymph nodes
  • BILLABLE CODE - Use C84.74 for Anaplastic large cell lymphoma, ALK-negative, lymph nodes of axilla and upper limb
  • BILLABLE CODE - Use C84.75 for Anaplastic large cell lymphoma, ALK-negative, lymph nodes of inguinal region and lower limb
  • BILLABLE CODE - Use C84.76 for Anaplastic large cell lymphoma, ALK-negative, intrapelvic lymph nodes
  • BILLABLE CODE - Use C84.77 for Anaplastic large cell lymphoma, ALK-negative, spleen
  • BILLABLE CODE - Use C84.78 for Anaplastic large cell lymphoma, ALK-negative, lymph nodes of multiple sites
  • BILLABLE CODE - Use C84.79 for Anaplastic large cell lymphoma, ALK-negative, extranodal and solid organ sites
  • NON-BILLABLE CODE - C84.9 for Mature T/NK-cell lymphomas, unspecified
  • BILLABLE CODE - Use C84.90 for Mature T/NK-cell lymphomas, unspecified, unspecified site
  • BILLABLE CODE - Use C84.91 for Mature T/NK-cell lymphomas, unspecified, lymph nodes of head, face, and neck
  • BILLABLE CODE - Use C84.92 for Mature T/NK-cell lymphomas, unspecified, intrathoracic lymph nodes
  • BILLABLE CODE - Use C84.93 for Mature T/NK-cell lymphomas, unspecified, intra-abdominal lymph nodes
  • BILLABLE CODE - Use C84.94 for Mature T/NK-cell lymphomas, unspecified, lymph nodes of axilla and upper limb
  • BILLABLE CODE - Use C84.95 for Mature T/NK-cell lymphomas, unspecified, lymph nodes of inguinal region and lower limb
  • BILLABLE CODE - Use C84.96 for Mature T/NK-cell lymphomas, unspecified, intrapelvic lymph nodes
  • BILLABLE CODE - Use C84.97 for Mature T/NK-cell lymphomas, unspecified, spleen
  • BILLABLE CODE - Use C84.98 for Mature T/NK-cell lymphomas, unspecified, lymph nodes of multiple sites
  • BILLABLE CODE - Use C84.99 for Mature T/NK-cell lymphomas, unspecified, extranodal and solid organ sites
  • NON-BILLABLE CODE - C84.A for Cutaneous T-cell lymphoma, unspecified
  • BILLABLE CODE - Use C84.A0 for Cutaneous T-cell lymphoma, unspecified, unspecified site
  • BILLABLE CODE - Use C84.A1 for Cutaneous T-cell lymphoma, unspecified lymph nodes of head, face, and neck
  • BILLABLE CODE - Use C84.A2 for Cutaneous T-cell lymphoma, unspecified, intrathoracic lymph nodes
  • BILLABLE CODE - Use C84.A3 for Cutaneous T-cell lymphoma, unspecified, intra-abdominal lymph nodes
  • BILLABLE CODE - Use C84.A4 for Cutaneous T-cell lymphoma, unspecified, lymph nodes of axilla and upper limb
  • BILLABLE CODE - Use C84.A5 for Cutaneous T-cell lymphoma, unspecified, lymph nodes of inguinal region and lower limb
  • BILLABLE CODE - Use C84.A6 for Cutaneous T-cell lymphoma, unspecified, intrapelvic lymph nodes
  • BILLABLE CODE - Use C84.A7 for Cutaneous T-cell lymphoma, unspecified, spleen
  • BILLABLE CODE - Use C84.A8 for Cutaneous T-cell lymphoma, unspecified, lymph nodes of multiple sites
  • BILLABLE CODE - Use C84.A9 for Cutaneous T-cell lymphoma, unspecified, extranodal and solid organ sites
  • NON-BILLABLE CODE - C84.Z for Other mature T/NK-cell lymphomas
  • BILLABLE CODE - Use C84.Z0 for Other mature T/NK-cell lymphomas, unspecified site
  • BILLABLE CODE - Use C84.Z1 for Other mature T/NK-cell lymphomas, lymph nodes of head, face, and neck
  • BILLABLE CODE - Use C84.Z2 for Other mature T/NK-cell lymphomas, intrathoracic lymph nodes
  • BILLABLE CODE - Use C84.Z3 for Other mature T/NK-cell lymphomas, intra-abdominal lymph nodes
  • BILLABLE CODE - Use C84.Z4 for Other mature T/NK-cell lymphomas, lymph nodes of axilla and upper limb
  • BILLABLE CODE - Use C84.Z5 for Other mature T/NK-cell lymphomas, lymph nodes of inguinal region and lower limb
  • BILLABLE CODE - Use C84.Z6 for Other mature T/NK-cell lymphomas, intrapelvic lymph nodes
  • BILLABLE CODE - Use C84.Z7 for Other mature T/NK-cell lymphomas, spleen
  • BILLABLE CODE - Use C84.Z8 for Other mature T/NK-cell lymphomas, lymph nodes of multiple sites
  • BILLABLE CODE - Use C84.Z9 for Other mature T/NK-cell lymphomas, extranodal and solid organ sites

Tabular List of Diseases and Injuries

The Tabular List of Diseases and Injuries is a list of ICD-10 codes, organized "head to toe" into chapters and sections with coding notes and guidance for inclusions, exclusions, descriptions and more. The following references are applicable to the code C84:


Type 1 Excludes

Type 1 Excludes
A type 1 excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.

Information for Patients


Lymphoma

Also called: Non-Hodgkin lymphoma

Lymphoma is a cancer of a part of the immune system called the lymph system. There are many types of lymphoma. One type is Hodgkin disease. The rest are called non-Hodgkin lymphomas.

Non-Hodgkin lymphomas begin when a type of white blood cell, called a T cell or B cell, becomes abnormal. The cell divides again and again, making more and more abnormal cells. These abnormal cells can spread to almost any other part of the body. Most of the time, doctors don't know why a person gets non-Hodgkin lymphoma. You are at increased risk if you have a weakened immune system or have certain types of infections.

Non-Hodgkin lymphoma can cause many symptoms, such as

Your doctor will diagnose lymphoma with a physical exam, blood tests, a chest x-ray, and a biopsy. Treatments include chemotherapy, radiation therapy, targeted therapy, biological therapy, or therapy to remove proteins from the blood. Targeted therapy uses substances that attack cancer cells without harming normal cells. Biologic therapy boosts your body's own ability to fight cancer. If you don't have symptoms, you may not need treatment right away. This is called watchful waiting.

NIH: National Cancer Institute


[Learn More in MedlinePlus]

Code History

  • FY 2021 - No Change, effective from 10/1/2020 through 9/30/2021
  • FY 2020 - No Change, effective from 10/1/2019 through 9/30/2020
  • FY 2019 - No Change, effective from 10/1/2018 through 9/30/2019
  • FY 2018 - No Change, effective from 10/1/2017 through 9/30/2018
  • FY 2017 - No Change, effective from 10/1/2016 through 9/30/2017
  • FY 2016 - New Code, effective from 10/1/2015 through 9/30/2016 (First year ICD-10-CM implemented into the HIPAA code set)