Diagnosis Code

C11.9 MALIGNANT NEOPLASM OF NASOPHARYNX, UNSPECIFIED

Code Information

Diagnosis Code: C11.9

Short Description: Malignant neoplasm of nasopharynx, unspecified

Long Description: Malignant neoplasm of nasopharynx, unspecified

The code C11.9 is VALID for claim submission

Code Classification:

  • Neoplasms (C00–D48)
    • Malignant neoplasms of lip, oral cavity and pharynx (C00-C14)
      • Malignant neoplasm of nasopharynx (C11)
        • C11.9 Malignant neoplasm of nasopharynx, unspecified

Code Version: 2018 ICD-10-CM

Synonyms

  • 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 adenocarcinoma of nasopharynx
  • Primary adenoid cystic carcinoma of 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

References to Index of Diseases and Injuries

The code C11.9 has the following ICD-10-CM references to the Index of Diseases and Injuries
  • Inclusion Terms:
    • Malignant neoplasm of nasopharyngeal wall NOS

Crosswalk Information

ICD-10 Code ICD-9 Code ICD-9 Description
C11.9 Right Arrow 147.9 Mal neo nasopharynx NOS
This ICD-10 to ICD-9 data is based on the 2018 General Equivalency Mapping (GEM) files published by the Centers for Medicare & Medicaid Services (CMS) for informational purposes only. The data is not an ICD-10 conversion tool and doesn’t guarantee clinical accuracy.

Similar Codes

ICD-10 Code ICD-10 Description
C11 Malignant neoplasm of nasopharynx
C11.0 Malignant neoplasm of superior wall of nasopharynx
C11.1 Malignant neoplasm of posterior wall of nasopharynx
C11.2 Malignant neoplasm of lateral wall of nasopharynx
C11.3 Malignant neoplasm of anterior wall of nasopharynx
C11.8 Malignant neoplasm of overlapping sites of nasopharynx

This page was last updated on: 1/1/2018