Valid for Submission
C04.0 is a billable diagnosis code used to specify a medical diagnosis of malignant neoplasm of anterior floor of mouth. The code C04.0 is valid during the fiscal year 2022 from October 01, 2021 through September 30, 2022 for the submission of HIPAA-covered transactions.
The ICD-10-CM code C04.0 might also be used to specify conditions or terms like carcinoma of anterior part of floor of mouth, carcinoma of floor of mouth, malignant neoplasm of anterior and lateral floor of mouth, malignant tumor of anterior floor of mouth, malignant tumor of lateral floor of mouth , primary malignant neoplasm of anterior portion of floor of mouth, etc.
The following anatomical sites found in the Table of Neoplasms apply to this code given the correct histological behavior: mouth floor anterior portion .
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 C04.0:
Inclusion TermsInclusion Terms
These terms are the conditions for which that code is to be used. The terms may be synonyms of the code title, or, in the case of "other specified" codes, the terms are a list of the various conditions assigned to that code. The inclusion terms are not necessarily exhaustive. Additional terms found only in the Alphabetic Index may also be assigned to a code.
- Malignant neoplasm of anterior to the premolar-canine junction
The following clinical terms are approximate synonyms or lay terms that might be used to identify the correct diagnosis code:
- Carcinoma of anterior part of floor of mouth
- Carcinoma of floor of mouth
- Malignant neoplasm of anterior and lateral floor of mouth
- Malignant tumor of anterior floor of mouth
- Malignant tumor of lateral floor of mouth
- Primary malignant neoplasm of anterior portion of floor of mouth
- Tumor of anterior floor of mouth
- Tumor of lateral floor of mouth
Convert C04.0 to ICD-9 Code
Table of Neoplasms
The code C04.0 is included in the table of neoplasms by anatomical site. For each site there are six possible code numbers according to whether the neoplasm in question is malignant, benign, in situ, of uncertain behavior, or of unspecified nature. The description of the neoplasm will often indicate which of the six columns is appropriate.
Where such descriptors are not present, the remainder of the Index should be consulted where guidance is given to the appropriate column for each morphological (histological) variety listed. However, the guidance in the Index can be overridden if one of the descriptors mentioned above is present.
Information for Patients
Oral cancer can form in any part of the mouth. Most oral cancers begin in the flat cells that cover the surfaces of your mouth, tongue, and lips. Anyone can get oral cancer, but the risk is higher if you are male, use tobacco, drink lots of alcohol, have HPV, or have a history of head or neck cancer. Frequent sun exposure is also a risk factor for lip cancer.
Symptoms of oral cancer include
- White or red patches in your mouth
- A mouth sore that won't heal
- Bleeding in your mouth
- Loose teeth
- Problems or pain with swallowing
- A lump in your neck
- An earache
Tests to diagnose oral cancer include a physical exam, endoscopy, biopsy, and imaging tests. Oral cancer treatments may include surgery, radiation therapy, and chemotherapy. Some patients have a combination of treatments.
NIH: National Cancer Institute
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