Valid for Submission
C11.8 is a billable diagnosis code used to specify a medical diagnosis of malignant neoplasm of overlapping sites of nasopharynx. The code C11.8 is valid during the fiscal year 2021 from October 01, 2020 through September 30, 2021 for the submission of HIPAA-covered transactions.
The ICD-10-CM code C11.8 might also be used to specify conditions or terms like overlapping malignant neoplasm of nasopharynx.
The following anatomical sites found in the Table of Neoplasms apply to this code given the correct histological behavior: Neoplasm, neoplastic nasopharynx, nasopharyngeal overlapping lesion .
The following clinical terms are approximate synonyms or lay terms that might be used to identify the correct diagnosis code:
- Overlapping malignant neoplasm of nasopharynx
Convert C11.8 to ICD-9 Code
The General Equivalency Mapping (GEM) crosswalk indicates an approximate mapping between the ICD-10 code C11.8 its ICD-9 equivalent. The approximate mapping means there is not an exact match between the ICD-10 code and the ICD-9 code and the mapped code is not a precise representation of the original code.
Table of Neoplasms
The code C11.8 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.
|»Neoplasm, neoplastic |
Information for Patients
Also called: Hypopharyngeal cancer, Laryngeal cancer, Laryngopharyngeal cancer, Nasopharyngeal cancer, Oropharyngeal cancer, Pharyngeal cancer
Throat cancer is a type of head and neck cancer. Throat cancer has different names, depending on which part of the throat is affected. The different parts of your throat are called the oropharynx, the hypopharynx, the nasopharynx, and the larynx, or voice box.
The main risk factors for throat cancer are using tobacco heavy drinking. Certain types of throat cancer also have other risk factors. For example, having HPV is a risk factor for oropharyngeal cancer.
Symptoms of throat cancer may include
- A sore throat that does not go away
- A lump in the neck
- Pain or ringing in the ears
- Trouble swallowing
- Ear pain
To diagnose throat cancers, doctors may do a physical exam and history, imaging tests, and a biopsy. You may also need other tests, depending on the type of cancer. Treatments include surgery, radiation therapy, and chemotherapy. Treatment for some types of throat cancer may also include targeted therapy. Targeted therapy uses substances that attack cancer cells without harming normal cells.
NIH: National Cancer Institute
- Laryngectomy (Medical Encyclopedia)
- Swallowing problems (Medical Encyclopedia)
- Throat or larynx cancer (Medical Encyclopedia)
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