ICD-10-CM Diagnosis Code C11 - Malignant neoplasm of nasopharynx (original) (raw)

ICD List 2025-2026 Edition

1. Home
2. ICD-10-CM Codes
3. C00–D49
4. C00-C14
5. C11
6. 2026 ICD-10-CM Code C11

Malignant neoplasm of nasopharynx

ICD-10-CM Code:

C11

ICD-10 Code for:

Malignant neoplasm of nasopharynx

Is Billable?

Not Valid for Submission

Code Navigator:

C11 is a non-specific and non-billable diagnosis code code, consider using a code with a higher level of specificity from the list below for a diagnosis of malignant neoplasm of nasopharynx. The code is not specific and is NOT valid for the year 2026 for the submission of HIPAA-covered transactions. Category or Header define the heading of a category of codes that may be further subdivided by the use of 4th, 5th, 6th or 7th characters.

Non-specific codes like C11 require more digits to indicate the appropriate level of specificity. Consider using any of the following billable codes with a higher level of specificity when coding for malignant neoplasm of nasopharynx:

• Use C11.0 for Malignant neoplasm of superior wall of nasopharynx

• Use C11.1 for Malignant neoplasm of posterior wall of nasopharynx

• Use C11.2 for Malignant neoplasm of lateral wall of nasopharynx

• Use C11.3 for Malignant neoplasm of anterior wall of nasopharynx

• Use C11.8 for Malignant neoplasm of overlapping sites of nasopharynx

• Use C11.9 for Malignant neoplasm of nasopharynx, unspecified

1. Code Information
2. Specific Coding
3. Tabular List of Diseases and Injuries
4. Patient Education
5. Other Codes Used Similar Conditions
6. Code History

• Neoplasms
  C00–D49
  • Malignant neoplasms of lip, oral cavity and pharynx
    C00-C14
    * Malignant neoplasm of nasopharynx
    C11

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.

The main risk factors for throat cancer are tobacco use and 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 drugs or other substances that attack specific cancer cells with less harm to normal cells.

NIH: National Cancer Institute

[Learn More in MedlinePlus]

• FY 2026 - No Change, effective from 10/1/2025 through 9/30/2026

• FY 2025 - No Change, effective from 10/1/2024 through 9/30/2025

• FY 2024 - No Change, effective from 10/1/2023 through 9/30/2024

• FY 2023 - No Change, effective from 10/1/2022 through 9/30/2023

• FY 2022 - No Change, effective from 10/1/2021 through 9/30/2022

• FY 2021 - No Change, effective from 10/1/2020 through 9/30/2021

• FY 2020 - No Change, effective from 10/1/2019 through 9/30/2020

• FY 2019 - No Change, effective from 10/1/2018 through 9/30/2019

• FY 2018 - No Change, effective from 10/1/2017 through 9/30/2018

• FY 2017 - No Change, effective from 10/1/2016 through 9/30/2017

• FY 2016 - New Code, effective from 10/1/2015 through 9/30/2016. This was the first year ICD-10-CM was implemented into the HIPAA code set.

• Previous Code: C10.9

• Next Code: C11.0