C11.9

Applicable To

• Malignant neoplasm of nasopharyngeal wall NOS

Approximate Synonyms

• Cancer of the nasopharynx

• Cancer of the nasopharynx, adenocarcinoma

• Cancer of the nasopharynx, adenoid cystic

• Cancer of the nasopharynx, squamous cell

• Cancer of the nasopharynx, undifferentiated

• Primary adenocarcinoma of nasopharynx

• Primary adenoid cystic carcinoma of nasopharynx

• Primary malignant tumor of nasopharynx

• Squamous cell carcinoma of nasopharynx

• Undifferentiated carcinoma of nasopharynx

Clinical Information

• A primary or metastatic malignant neoplasm involving the nasopharynx.

Details

• C11.9 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.

• The 2023 edition of ICD-10-CM C11.9 became effective on October 1, 2022.

• This is the American ICD-10-CM version of C11.9 – other international versions of ICD-10 C11.9 may differ.