Specific code 2012 ICD-9-CM Diagnosis Code 146.8
Malignant neoplasm of other specified sites of oropharynx
  • Short description: Mal neo oropharynx NEC.
  • ICD-9-CM 146.8 is a billable medical code that can be used to indicate a diagnosis on a reimbursement claim, however, 146.8 should only be used for claims with a date of service on or before September 30, 2015. For claims with a date of service on or after October 1, 2015, use an equivalent ICD-10-CM code (or codes).
  • You are viewing the 2012 version of ICD-9-CM 146.8.
  • More recent version(s) of ICD-9-CM 146.8: 2013 2014 2015.
Convert to ICD-10-CM: 146.8 converts approximately to:
  • 2015/16 ICD-10-CM C10.4 Malignant neoplasm of branchial cleft
  • 2015/16 ICD-10-CM C10.8 Malignant neoplasm of overlapping sites of oropharynx
Approximate Synonyms
  • Cancer of the branchial cleft
  • Cancer of the tonsil, overlapping sites
  • Malignant tumor of branchial cleft
  • Oropharyngeal cancer, brachial cleft
  • Overlapping malignant neoplasm of oropharynx
  • Overlapping malignant neoplasm of tonsil
  • Primary malignant neoplasm of branchial cleft
  • Tonsil cancer, overlapping sites
Applies To
  • Branchial cleft
  • Malignant neoplasm of contiguous or overlapping sites of oropharynx whose point of origin cannot be determined
ICD-9-CM Volume 2 Index entries containing back-references to 146.8:
  • Carcinoma (M8010/3) - see also Neoplasm, by site, malignant
    • branchial or branchiogenic 146.8
ICD-9-CM codes are used in medical billing and coding to describe diseases, injuries, symptoms and conditions. ICD-9-CM 146.8 is one of thousands of ICD-9-CM codes used in healthcare. Although ICD-9-CM and CPT codes are largely numeric, they differ in that CPT codes describe medical procedures and services. Can't find a code? Start at the root of ICD-9-CM, check the 2012 ICD-9-CM Index or use the search engine at the top of this page to lookup any code.