ICD-10-CM Code C84.0
Non-Billable CodeNon-Billable means the code is not sufficient justification for admission to an acute care hospital when used a principal diagnosis. Use a child code to capture more detail.
ICD Code C84.0 is a non-billable code. To code a diagnosis of this type, you must use one of the ten child codes of C84.0 that describes the diagnosis 'mycosis fungoides' in more detail.
- C84.0 Mycosis fungoides NON-BILLABLE
The ICD code C840 is used to code Cutaneous T cell lymphoma
Cutaneous T cell lymphoma (CTCL) is a class of non-Hodgkin lymphoma, which is a type of cancer of the immune system. Unlike most non-Hodgkin lymphomas (which are generally B cell related), CTCL is caused by a mutation of T cells. The malignant T cells in the body initially migrate to the skin, causing various lesions to appear. These lesions change shape as the disease progresses, typically beginning as what appears to be a rash which can be very itchy and eventually forming plaques and tumors before metastasizing to other parts of the body.
|Specialty:||Hematology And Oncology|
|MeSH Codes:||D016410, D016410|
|ICD 9 Codes:||202.1, 202.2|
Micrograph showing cutaneous T-cell lymphoma. H&E stain.
Coding Notes for C84.0 Info for medical coders on how to properly use this ICD-10 code
Code Type-1 Excludes:
Type-1 ExcludesType-1 Excludes mean the conditions excluded are mutually exclusive and should never be coded together. Excludes 1 means "do not code here."
- Peripheral T-cell lymphoma, not classified - instead, use code C84.4-
Related Concepts SNOMET-CT
- Mycosis fungoides of extranodal AND/OR solid organ site (disorder)
Coding Advice SNOMET-CT
- Possible requirement for morphology code
ICD-10-CM Alphabetical Index References for 'C84.0 - Mycosis fungoides'
The ICD-10-CM Alphabetical Index links the below-listed medical terms to the ICD code C84.0. Click on any term below to browse the alphabetical index.