2026 ICD-10-CM Diagnosis Code C13Malignant neoplasm of hypopharynx
C13 is a non-billable ICD-10-CM category code for malignant neoplasm of hypopharynx, so it cannot be submitted on claims. Use a more specific code from this category instead, such as C13.0, C13.1, C13.2, and C13.8.
Code Identity
Code Classification
Specific Coding for Malignant neoplasm of hypopharynxOverview
Non-specific codes like C13 require more characters. Use one of these billable codes instead:
Use C13.0 for Malignant neoplasm of postcricoid region
Use C13.1 for Malignant neoplasm of aryepiglottic fold, hypopharyngeal aspect
Use C13.2 for Malignant neoplasm of posterior wall of hypopharynx
Use C13.8 for Malignant neoplasm of overlapping sites of hypopharynx
Use C13.9 for Malignant neoplasm of hypopharynx, unspecified
Tabular List NotesGuidance
Coding notes and annotation back-references applicable to this code.
Use Additional Code
- code to identify:
- exposure to environmental tobacco smoke Z77.22
- exposure to tobacco smoke in the perinatal period P96.81
- history of tobacco dependence Z87.891
- occupational exposure to environmental tobacco smoke Z57.31
- tobacco dependence F17
- tobacco use Z72.0
Type 2 Excludes
- malignant neoplasm of pyriform sinus C12
The “use additional code” indicates that a secondary code could be used to further specify the patient’s condition. This note is not mandatory and is only used if enough information is available to assign an additional code.
A type 2 excludes note represents "Not included here". An excludes2 note indicates that the condition excluded is not part of the condition represented by the code, but a patient may have both conditions at the same time. When an Excludes2 note appears under a code, it is acceptable to use both the code and the excluded code together, when appropriate.
Patient EducationClinical
Throat 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.
Read the full article at MedlinePlus
Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.
Code HistoryHistory
Questions About C13Overview
Is C13 (Malignant neoplasm of hypopharynx) a billable code?
No. This is a category header that groups the codes for malignant neoplasm of hypopharynx, and headers cannot be submitted on claims. Claims for malignant neoplasm of hypopharynx need a more specific code from this category, such as C13.0, C13.1, and C13.2.
