Specific code 2012 ICD-9-CM Diagnosis Code 173.22
Squamous cell carcinoma of skin of ear and external auditory canal
  • Short description: Squam cell ca skin ear.
  • ICD-9-CM 173.22 is a billable medical code that can be used to indicate a diagnosis on a reimbursement claim, however, 173.22 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 173.22.
  • More recent version(s) of ICD-9-CM 173.22: 2013 2014 2015.
Convert to ICD-10-CM: 173.22 converts approximately to:
  • 2015/16 ICD-10-CM C44.221 Squamous cell carcinoma of skin of unspecified ear and external auricular canal
Disease Synonyms
  • Cancer of the ext auditory canal, squamous cell
  • Cancer of the pinna of ear, squamous cell
  • Cancer of the skin of ear, squamous cell
  • Squamous cell carcinoma of auricle of ear
  • Squamous cell carcinoma of external auditory canal
  • Squamous cell carcinoma of skin of ear
  • Squamous cell carcinoma, auricle
  • Squamous cell carcinoma, ear
  • Squamous cell carcinoma, external auditory canal
ICD-9-CM codes are used in medical billing and coding to describe diseases, injuries, symptoms and conditions. ICD-9-CM 173.22 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.