C09.0
BillableMalignant neoplasm of tonsillar fossa
Malignant neoplasm of tonsillar fossa
Coding Notes
Excludes 2
Conditions not included here, but the patient may have both
Use Additional Code
Additional codes that should follow this code
Related Codes(3)
ICD-11 Equivalents(1)
ICD-11 Equivalents
View full mappingCorresponding ICD-11 codes from the WHO crosswalk mapping
Also Known As / Clinical Terms(27)
SNOMED CT
- Primary malignant neoplasm of lateral wall of oropharynx93862005
- Primary malignant neoplasm of tonsillar fossa94102002
- Neoplasm of tonsillar fossa126810008
- Tumor of tonsillar fossa126810008
- Tumour of tonsillar fossa126810008
- Malignant neoplasm of tonsillar fossa363394001
- Malignant tumor of tonsillar fossa363394001
- Malignant tumour of tonsillar fossa363394001
- Primary squamous cell carcinoma of lateral wall of oropharynx707535004
- Squamous cell carcinoma of lateral wall of oropharynx1254800007
- Primary squamous cell carcinoma of tonsillar fossa689361000119108
UMLS
Clinical Terms
- Primary malignant neoplasm of lateral wall of oropharynx
- Neoplasm of tonsillar fossa
- Primary squamous cell carcinoma of tonsillar fossa
- Tumor of tonsillar fossa
- Primary malignant neoplasm of tonsillar fossa
- Primary squamous cell carcinoma of lateral wall of oropharynx
- Malignant tumour of tonsillar fossa
- Tumour of tonsillar fossa
- Malignant tumor of tonsillar fossa
- Squamous cell carcinoma of lateral wall of oropharynx
- Malignant neoplasm of tonsillar fossa (disorder)
Frequently Asked Questions
What is the ICD-10 code for malignant neoplasm of tonsillar fossa?
The ICD-10-CM code for malignant neoplasm of tonsillar fossa is C09.0. The full clinical description is "Malignant neoplasm of tonsillar fossa". C09.0 is a billable/specific code that can be used on insurance claims and medical billing.
What does ICD-10 code C09.0 mean?
ICD-10-CM code C09.0 represents “Malignant neoplasm of tonsillar fossa”. It is classified under Chapter 2: Neoplasms and is a billable/specific code that can be used on a claim.
Is C09.0 a billable code?
Yes, C09.0 is a billable/specific ICD-10-CM code and can be used to indicate a diagnosis on a medical claim.
What chapter is C09.0 in?
C09.0 is in Chapter 2: Neoplasms (codes C00-D49).
Are additional codes required with C09.0?
Yes, when using C09.0, also report: ; alcohol abuse and dependence (F10.-); 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 C09.0 map to?
C09.0 maps to 7 SNOMED CT concepts: 363394001, 126810008, 93862005, 94102002, 707535004, and 2 more. SNOMED CT is a clinical terminology used in electronic health records.
What are the UMLS CUIs for C09.0?
C09.0 is linked to 1 UMLS Concept Unique Identifier: C0153384. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.
How does C09.0 relate to ICF functioning codes?
ICF (International Classification of Functioning, Disability and Health) codes describe how conditions like malignant neoplasm of tonsillar fossa 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 C09.0?
C09.0 maps to the ICD-11 code: 2B69.Z (Malignant neoplasms of tonsil, 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.