C04
Non-billableMalignant neoplasm of floor of mouth
Malignant neoplasm of floor of mouth
This is a header/category code. For billing purposes, use a more specific child code from the list below.
Coding Notes
Use Additional Code
Additional codes that should follow this code
Child Codes (4)
ICD-11 Equivalents(1)
ICD-11 Equivalents
View full mappingCorresponding ICD-11 codes from the WHO crosswalk mapping
Also Known As / Clinical Terms(16)
UMLS
- Cancer of floor of mouthC0153368
- Malignant Floor of Mouth NeoplasmC0153368
- Malignant Floor of Mouth TumorC0153368
- Malignant Floor of the Mouth NeoplasmC0153368
- Malignant Floor of the Mouth TumorC0153368
- Malignant Neoplasm of Floor of MouthC0153368
- Malignant Neoplasm of the Floor of the MouthC0153368
- Malignant Tumor of Floor of MouthC0153368
- Malignant Tumor of the Floor of the MouthC0153368
- Malignant neoplasm of floor of mouthC0153368
- Malignant neoplasm of floor of mouth (disorder)C0153368
- Malignant neoplasm of floor of mouth, part unspecifiedC0153368
- Malignant neoplasm of floor of mouth, unspecifiedC0153368
- Malignant tumor of floor of mouthC0153368
- Malignant tumour of floor of mouthC0153368
- Mouth floor cancerC0153368
Frequently Asked Questions
What is the ICD-10 code for malignant neoplasm of floor of mouth?
The ICD-10-CM code for malignant neoplasm of floor of mouth is C04. The full clinical description is "Malignant neoplasm of floor of mouth". C04 is a non-billable header code. Use a more specific child code for billing purposes.
What does ICD-10 code C04 mean?
ICD-10-CM code C04 represents “Malignant neoplasm of floor of mouth”. It is classified under Chapter 2: Neoplasms and is a non-billable header code. Use a more specific child code for billing purposes.
Is C04 a billable code?
No, C04 is a non-billable header code. You need to use one of its more specific child codes for billing. There are 4 child codes under C04.
What chapter is C04 in?
C04 is in Chapter 2: Neoplasms (codes C00-D49).
What are the subcategories under C04?
C04 has 4 child codes, including: C04.0 (Malignant neoplasm of anterior floor of mouth), C04.1 (Malignant neoplasm of lateral floor of mouth), C04.8 (Malignant neoplasm of overlapping sites of floor of mouth), C04.9 (Malignant neoplasm of floor of mouth, unspecified).
Are additional codes required with C04?
Yes, when using C04, also report: ; alcohol abuse and dependence (F10.-); history of tobacco dependence (Z87.891); tobacco dependence (F17.-); tobacco use (Z72.0).
What are the UMLS CUIs for C04?
C04 is linked to 1 UMLS Concept Unique Identifier: C0153368. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.
How does C04 relate to ICF functioning codes?
ICF (International Classification of Functioning, Disability and Health) codes describe how conditions like malignant neoplasm of floor of mouth affect a person's functioning — body functions, activities, participation, and environmental factors. AutoICD provides ICF Core Sets for 12+ conditions and can map clinical text to ICF categories automatically. Browse the ICF directory to explore functioning codes.
What is the ICD-11 equivalent of C04?
C04 maps to the ICD-11 code: 2B64.Z (Malignant neoplasms of floor of mouth, unspecified).
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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.