C11.9
BillableMalignant neoplasm of nasopharynx, unspecified
Malignant neoplasm of nasopharynx, unspecified
Coding Notes
Inclusion Terms
Alternative clinical terms for this condition
- Malignant neoplasm of nasopharyngeal wall NOS
Use Additional Code
Additional codes that should follow this code
Related Codes(5)
C11.0Malignant neoplasm of superior wall of nasopharynx
C11.1Malignant neoplasm of posterior wall of nasopharynx
C11.2Malignant neoplasm of lateral wall of nasopharynx
C11.3Malignant neoplasm of anterior wall of nasopharynx
C11.8Malignant neoplasm of overlapping sites of nasopharynx
ICD-11 Equivalents(1)
ICD-11 Equivalents
View full mappingCorresponding ICD-11 codes from the WHO crosswalk mapping
Also Known As / Clinical Terms(168)
SNOMED CT
- Cancer of nasopharynx187692001
- Malignant neoplasm of nasopharynx187692001
- Malignant tumor of epipharynx187692001
- Malignant tumor of nasopharynx187692001
- Malignant tumor of postnasal space187692001
- Malignant tumour of epipharynx187692001
- Malignant tumour of nasopharynx187692001
- Malignant tumour of postnasal space187692001
- Neoplasm of nasal cavity and nasopharynx232388008
- Tumor of nasal cavity and nasopharynx232388008
- Tumour of nasal cavity and nasopharynx232388008
- Malignant neoplasm of nasopharyngeal wall240163000
- Malignant neoplasm of nasal cavity and nasopharynx255074000
- Malignant tumor of nasal cavity and nasopharynx255074000
- Malignant tumour of nasal cavity and nasopharynx255074000
- Undifferentiated carcinoma of nasopharynx422541001
- Squamous cell carcinoma of nasopharynx422691006
- Adenocarcinoma of nasopharynx423106003
- Nasopharyngeal carcinoma449248000
- Keratinising squamous cell carcinoma of nasopharynx698011002
- Keratinizing squamous cell carcinoma of nasopharynx698011002
- Nasopharyngeal carcinoma type 2b698048006
- Nasopharyngeal carcinoma type 3698048006
- Undifferentiated nonkeratinising carcinoma of nasopharynx698048006
- Undifferentiated nonkeratinizing carcinoma of nasopharynx698048006
- Undifferentiated nonkeratinizing squamous cell carcinoma of nasopharynx698048006
- Primary squamous cell carcinoma of nasopharynx707528007
- Nonkeratinizing carcinoma of the nasopharynx707705008
- Primary malignant epithelial neoplasm of nasopharynx722529000
- Papillary squamous cell carcinoma of nasopharynx870327007
- Primary mucoepidermoid carcinoma of nasopharynx1010603001
- Primary lymphoepithelial carcinoma of nasopharynx1010607000
- Primary salivary gland type neoplasm of nasopharynx1010624006
- Primary papillary adenocarcinoma of nasopharynx1010633008
- Adenoid squamous cell carcinoma of nasopharynx1010656004
- Basaloid squamous cell carcinoma of nasopharynx1010674008
- Primary keratinising squamous cell carcinoma of nasopharynx1259445002
- Primary keratinizing squamous cell carcinoma of nasopharynx1259445002
- Primary nasopharyngeal carcinoma type 2b1259446001
- Primary nasopharyngeal carcinoma type 31259446001
- Primary undifferentiated nonkeratinising carcinoma of nasopharynx1259446001
- Primary undifferentiated nonkeratinizing carcinoma of nasopharynx1259446001
- Primary undifferentiated nonkeratinizing squamous cell carcinoma of nasopharynx1259446001
- Primary nonkeratinizing carcinoma of the nasopharynx1259470002
- Primary undifferentiated carcinoma of nasopharynx1259509002
- Primary acantholytic squamous cell carcinoma1259553007
- Primary papillary squamous cell carcinoma of nasopharynx1259620008
- Primary adenoid squamous cell carcinoma of nasopharynx1259702008
- Primary basaloid squamous cell carcinoma of nasopharynx1259704009
- Primary carcinoma of nasopharynx1268487009
- Primary nasopharyngeal carcinoma1268487009
- Primary lymphoepithelial carcinoma1268640008
- Primary adenocarcinoma of nasopharynx184861000119102
- Primary adenoid cystic carcinoma of nasopharynx7391000119103
- Primary malignant neoplasm of nasopharynx226521000119108
- Primary malignant tumor of nasopharynx226521000119108
- Primary malignant tumour of nasopharynx226521000119108
UMLS
- Cancer of NasopharynxC0153392
- Cancer of nasopharynxC0153392
- Cancer of the NasopharynxC0153392
- Cancer, NasopharyngealC0153392
- Cancer, NasopharynxC0153392
- Cancers, NasopharyngealC0153392
- Cancers, NasopharynxC0153392
- Malignant Nasopharyngeal NeoplasmC0153392
- Malignant Nasopharyngeal TumorC0153392
- Malignant Neoplasm of NasopharynxC0153392
- Malignant Neoplasm of the NasopharynxC0153392
- Malignant Tumor of NasopharynxC0153392
- Malignant Tumor of the NasopharynxC0153392
- Malignant nasopharyngeal neoplasmC0153392
- Malignant neoplasm of nasopharynxC0153392
- Malignant neoplasm of nasopharynx (disorder)C0153392
- Malignant neoplasm of nasopharynx, unspecifiedC0153392
- Malignant tumor of epipharynxC0153392
- Malignant tumor of nasopharynxC0153392
- Malignant tumor of postnasal spaceC0153392
- Malignant tumour of epipharynxC0153392
- Malignant tumour of nasopharynxC0153392
- Malignant tumour of postnasal spaceC0153392
- Nasopharyngeal CancerC0153392
- Nasopharyngeal CancersC0153392
- Nasopharyngeal cancerC0153392
- Nasopharyngeal cancer NOSC0153392
- Nasopharynx CancerC0153392
- Nasopharynx CancersC0153392
- cancer nasopharyngealC0153392
- cancer nasopharynxC0153392
- nasopharyngeal cancerC0153392
- nasopharynx cancerC0153392
- Malignant neoplasm of nasopharyngeal wallC3665551
- Malignant neoplasm of nasopharyngeal wall (disorder)C3665551
- Malignant neoplasm of nasopharyngeal wall NOSC3665551
Clinical Terms
- Adenocarcinoma of nasopharynx
- Primary acantholytic squamous cell carcinoma
- Primary malignant epithelial neoplasm of nasopharynx
- Cancer of nasopharynx
- Nasopharyngeal carcinoma type 2b
- Primary malignant tumour of nasopharynx
- Primary adenoid cystic carcinoma of nasopharynx
- Primary papillary squamous cell carcinoma of nasopharynx
- Malignant Neoplasm of the Nasopharynx
- Primary malignant tumor of nasopharynx
- Undifferentiated carcinoma of nasopharynx
- Primary undifferentiated nonkeratinising carcinoma of nasopharynx
- Primary nonkeratinizing carcinoma of the nasopharynx
- Primary salivary gland type neoplasm of nasopharynx
- Primary lymphoepithelial carcinoma
- Malignant tumour of nasal cavity and nasopharynx
- Primary keratinising squamous cell carcinoma of nasopharynx
- Malignant neoplasm of nasopharynx (disorder)
- Nasopharyngeal carcinoma
- Nasopharyngeal Cancer
- Adenoid squamous cell carcinoma of nasopharynx
- Primary nasopharyngeal carcinoma type 2b
- Primary nasopharyngeal carcinoma type 3
- Keratinizing squamous cell carcinoma of nasopharynx
- Primary undifferentiated nonkeratinizing carcinoma of nasopharynx
- Malignant tumour of postnasal space
- Malignant tumor of epipharynx
- Malignant tumour of epipharynx
- Undifferentiated nonkeratinizing squamous cell carcinoma of nasopharynx
- Malignant neoplasm of nasopharyngeal wall
- Primary papillary adenocarcinoma of nasopharynx
- Primary squamous cell carcinoma of nasopharynx
- Primary lymphoepithelial carcinoma of nasopharynx
- Nasopharyngeal cancer NOS
- Primary adenocarcinoma of nasopharynx
- Neoplasm of nasal cavity and nasopharynx
- Primary undifferentiated nonkeratinizing squamous cell carcinoma of nasopharynx
- Cancer of the Nasopharynx
- Primary keratinizing squamous cell carcinoma of nasopharynx
- Nasopharyngeal carcinoma type 3
- Malignant tumor of postnasal space
- Basaloid squamous cell carcinoma of nasopharynx
- Primary basaloid squamous cell carcinoma of nasopharynx
- Malignant nasopharyngeal neoplasm
- Primary undifferentiated carcinoma of nasopharynx
- Primary nasopharyngeal carcinoma
- cancer nasopharyngeal
- Primary mucoepidermoid carcinoma of nasopharynx
- Malignant Tumor of Nasopharynx
- Cancers, Nasopharynx
- Malignant neoplasm of nasopharyngeal wall (disorder)
- nasopharynx cancer
- Malignant tumour of nasopharynx
- Nasopharynx Cancers
- Malignant tumor of nasal cavity and nasopharynx
- Malignant neoplasm of nasopharyngeal wall NOS
- cancer nasopharynx
- Malignant Nasopharyngeal Tumor
- Primary malignant neoplasm of nasopharynx
- Tumour of nasal cavity and nasopharynx
- Undifferentiated nonkeratinising carcinoma of nasopharynx
- Malignant neoplasm of nasal cavity and nasopharynx
- Cancers, Nasopharyngeal
- Primary adenoid squamous cell carcinoma of nasopharynx
- Papillary squamous cell carcinoma of nasopharynx
- Malignant Tumor of the Nasopharynx
- Tumor of nasal cavity and nasopharynx
- Cancer, Nasopharyngeal
- Undifferentiated nonkeratinizing carcinoma of nasopharynx
- Nasopharyngeal Cancers
- Keratinising squamous cell carcinoma of nasopharynx
- Cancer, Nasopharynx
- Squamous cell carcinoma of nasopharynx
- Primary carcinoma of nasopharynx
- Nonkeratinizing carcinoma of the nasopharynx
Frequently Asked Questions
What is the ICD-10 code for malignant neoplasm of nasopharynx, unspecified?
The ICD-10-CM code for malignant neoplasm of nasopharynx, unspecified is C11.9. The full clinical description is "Malignant neoplasm of nasopharynx, unspecified". C11.9 is a billable/specific code that can be used on insurance claims and medical billing.
What does ICD-10 code C11.9 mean?
ICD-10-CM code C11.9 represents “Malignant neoplasm of nasopharynx, unspecified”. It is classified under Chapter 2: Neoplasms and is a billable/specific code that can be used on a claim.
Is C11.9 a billable code?
Yes, C11.9 is a billable/specific ICD-10-CM code and can be used to indicate a diagnosis on a medical claim.
What chapter is C11.9 in?
C11.9 is in Chapter 2: Neoplasms (codes C00-D49).
Are additional codes required with C11.9?
Yes, when using C11.9, also report: ; exposure to environmental tobacco smoke (Z77.22); exposure to tobacco smoke in the perinatal period (P96.81); history of tobacco dependence (Z87.891); occupational exposure to environmental tobacco smoke (Z57.31); tobacco dependence (F17.-); tobacco use (Z72.0).
What SNOMED CT codes does C11.9 map to?
C11.9 maps to 33 SNOMED CT concepts: 423106003, 1010656004, 1010674008, 187692001, 698011002, and 28 more. SNOMED CT is a clinical terminology used in electronic health records.
What are the UMLS CUIs for C11.9?
C11.9 is linked to 2 UMLS Concept Unique Identifiers: C0153392, C3665551. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.
How does C11.9 relate to ICF functioning codes?
ICF (International Classification of Functioning, Disability and Health) codes describe how conditions like malignant neoplasm of nasopharynx, unspecified affect a person's functioning — body functions, activities, participation, and environmental factors. AutoICD provides ICF Core Sets for 12+ conditions and can map clinical text to ICF categories automatically. Browse the ICF directory to explore functioning codes.
What is the ICD-11 equivalent of C11.9?
C11.9 maps to the ICD-11 code: 2B6B.Z (Malignant neoplasms of nasopharynx, unspecified).
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Includes SNOMED Clinical Terms® (SNOMED CT®) used by permission of SNOMED International. Includes content from the UMLS Metathesaurus, courtesy of the U.S. National Library of Medicine.