Malignant neoplasm of hypopharynx (C13) ICD-10-CM
The C13 code range covers malignant neoplasm of hypopharynx with 6 ICD-10-CM diagnosis codes. 5 of them are billable and valid for claim submission in fiscal year 2027, and the category headers group them but cannot themselves be billed.
Use Additional Code
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.
- 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
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.
- malignant neoplasm of pyriform sinus C12
Codes in the C13 Range 6 codes · 5 billable
- C13 Malignant neoplasm of hypopharynxNon-billable
- C13.0 Malignant neoplasm of postcricoid region
- C13.1 Malignant neoplasm of aryepiglottic fold, hypopharyngeal aspect
- C13.2 Malignant neoplasm of posterior wall of hypopharynx
- C13.8 Malignant neoplasm of overlapping sites of hypopharynx
- C13.9 Malignant neoplasm of hypopharynx, unspecified
Clinical Terms in This Code Range
Definitions from the National Library of Medicine for conditions coded in the C13 range.
Malignant Hypopharyngeal Neoplasm
A primary or metastatic malignant neoplasm that affects the hypopharynx.
About the C13 Code Range
Malignant tumors in the hypopharynx, a part of the throat, may begin there or spread there from another site.
C13 divides these tumors by location: the postcricoid region (C13.0), the hypopharyngeal side of the aryepiglottic fold (C13.1), or the posterior wall (C13.2). Separate subdivisions identify overlapping sites (C13.8) and an unspecified site within the hypopharynx (C13.9).
Questions About This Page
How many billable codes are in the C13 range?
Of the 6 codes in this range, 5 are billable and valid for claim submission from October 1, 2026 through September 30, 2027. Category header codes group them but cannot be reported on claims.
What does the C13 range classify?
The range classifies malignant neoplasm of hypopharynx. Each code links to its own reference page with billing status, MS-DRG grouping, coding notes, and clinical information.
Related References
Source: CMS FY 2027 ICD-10-CM Tabular List and order file, effective October 1, 2026 through September 30, 2027.
