2026 ICD-10-CM Diagnosis Code C10.1Malignant neoplasm of anterior surface of epiglottis
ICD-10-CM Codes›C00–D49›C00-C14›C10
- Billable — Valid for Submission
- Chronic Condition
C10.1 is a billable ICD-10-CM diagnosis code for malignant neoplasm of anterior surface of epiglottis. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to MS-DRG 146 through 148. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Head and neck cancers - throat.
Code Identity
Code Classification
Approximate SynonymsGuidance
Alternate terms and clinical phrases that map to this code.
- Malignant neoplasm of anterior epiglottis
- Malignant neoplasm of epiglottis, free border
- Malignant neoplasm of glossoepiglottic fold
- Neoplasm of anterior aspect of epiglottis
- Neoplasm of glossoepiglottic fold
- Primary malignant neoplasm of anterior aspect of epiglottis
- Primary malignant neoplasm of epiglottis
- Primary squamous cell carcinoma of anterior surface of epiglottis
- Primary squamous cell carcinoma of supraglottis
- Squamous cell carcinoma of epiglottis
Tabular List NotesGuidance
Coding notes and annotation back-references applicable to this code.
Inclusion Terms
- Malignant neoplasm of epiglottis, free border margin
- Malignant neoplasm of glossoepiglottic fold(s)
Type 2 Excludes
- malignant neoplasm of epiglottis suprahyoid portion NOS C32.1
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.
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.
Clinical ClassificationClinical
AHRQ’s CCSR groups this code into broader clinical categories.
Table of NeoplasmsClinical
Anatomical sites in the Table of Neoplasms that reference this code family.
| Site | Malig. Primary | Malig. Secondary | Ca in situ | Benign | Uncertain | Unspec. |
|---|---|---|---|---|---|---|
| cartilage (articular) (joint) NEC [See Also: Neoplasm, bone] › epiglottis › anterior surface | C10.1 | C79.89 | D00.08 | D10.5 | D37.05 | D49.0 |
| epiglottis › anterior aspect or surface | C10.1 | C79.89 | D00.08 | D10.5 | D37.05 | D49.0 |
| epiglottis › free border (margin) | C10.1 | C79.89 | D00.08 | D10.5 | D37.05 | D49.0 |
| glosso-epiglottic fold (s) | C10.1 | C79.89 | D00.08 | D10.5 | D37.05 | D49.0 |
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.
Convert C10.1 to ICD-9-CMHistory
The closest ICD-9-CM equivalents under the General Equivalence Mappings.
Code HistoryHistory
Questions About C10.1Overview
Is C10.1 (Malignant neoplasm of oropharynx) a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report malignant neoplasm of anterior surface of epiglottis on HIPAA-covered claims from October 1, 2025 through September 30, 2026.
What MS-DRG does C10.1 group to?
When malignant neoplasm of anterior surface of epiglottis is the principal diagnosis on an inpatient stay, it groups to MS-DRG 146, 147, 148, with relative weights from 0.7971 to 2.1174 depending on complications. Higher weights mean higher Medicare reimbursement.
What is the ICD-9 equivalent of C10.1?
Under the General Equivalence Mappings, malignant neoplasm of anterior surface of epiglottis converts to ICD-9-CM 146.4 (mal neo ant epiglottis). The mapping is a direct match.
Footnotes
[1] Chronic - a chronic condition code indicates a condition lasting 12 months or longer and its effect on the patient based on one or both of the following criteria:
- The condition results in the need for ongoing intervention with medical products,treatment, services, and special equipment
- The condition places limitations on self-care, independent living, and social interactions.
