ICD-10 Diagnosis Code C11.9

Malignant neoplasm of nasopharynx, unspecified

Diagnosis Code C11.9

ICD-10: C11.9
Short Description: Malignant neoplasm of nasopharynx, unspecified
Long Description: Malignant neoplasm of nasopharynx, unspecified
This is the 2017 version of the ICD-10-CM diagnosis code C11.9

Code Classification
  • Neoplasms
    • Malignant neoplasms of lip, oral cavity and pharynx (C00-C14)
      • Malignant neoplasm of nasopharynx (C11)

Information for Medical Professionals

Convert to ICD-9 Additional informationCallout TooltipGeneral Equivalence Map
The ICD-10 and ICD-9 GEMs are used to facilitate linking between the diagnosis codes in ICD-9-CM and the new ICD-10-CM code set. The GEMs are the raw material from which providers, health information vendors and payers can derive specific applied mappings to meet their needs.
  • 147.9 - Mal neo nasopharynx NOS

  • Adenocarcinoma of nasopharynx
  • Keratinizing squamous cell carcinoma of nasopharynx
  • Malignant neoplasm of nasopharyngeal wall
  • Malignant tumor of nasal cavity and nasopharynx
  • Malignant tumor of nasopharynx
  • Nasopharyngeal carcinoma
  • Nonkeratinizing carcinoma of the nasopharynx
  • Primary squamous cell carcinoma of nasopharynx
  • Squamous cell carcinoma of nasopharynx
  • Tumor of nasal cavity and nasopharynx
  • Undifferentiated carcinoma of nasopharynx
  • Undifferentiated nonkeratinizing squamous cell carcinoma of nasopharynx

Index of Diseases and Injuries
References found for the code C11.9 in the Index of Diseases and Injuries:

Information for Patients

Throat Cancer

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 what part of the throat is affected. The different parts of the throat are called the oropharynx, the hypopharynx, and the nasopharynx. Sometimes the larynx, or voice box, is also included.

The main risk factors for throat cancer are smoking or using smokeless tobacco and use of alcohol.

Symptoms of throat cancer may include

  • Trouble breathing or speaking
  • Frequent headaches
  • Pain or ringing in the ears
  • Trouble swallowing
  • Ear pain

Treatments include surgery, radiation therapy, and chemotherapy.

NIH: National Cancer Institute

  • Laryngectomy
  • Swallowing problems
  • Throat or larynx cancer
  • What to Know about External Beam Radiation Therapy - NIH - Easy-to-Read (National Cancer Institute)

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