Specific code 2012 ICD-9-CM Diagnosis Code 173.91
Basal cell carcinoma of skin, site unspecified
  • Short description: Basal cell ca skin NOS.
  • ICD-9-CM 173.91 is a billable medical code that can be used to indicate a diagnosis on a reimbursement claim, however, 173.91 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 173.91.
  • More recent version(s) of ICD-9-CM 173.91: 2013 2014 2015.
Convert to ICD-10-CM: 173.91 converts directly to:
  • 2015/16 ICD-10-CM C44.91 Basal cell carcinoma of skin, unspecified
Approximate Synonyms
  • Basal cell carcinoma of skin
  • Basal cell carcinoma, skin
  • Cancer of the skin, basal cell
ICD-9-CM Volume 2 Index entries containing back-references to 173.91:
  • Carcinoma (M8010/3) - see also Neoplasm, by site, malignant
    • basal cell (pigmented) (M8090/3) (see also Neoplasm, skin, malignant) 173.91
      • fibro-epithelial type (M8093/3) - see Neoplasm, skin, malignant
      • morphea type (M8092/3) - see Neoplasm, skin, malignant
      • multicentric (M8091/3) - see Neoplasm, skin, malignant
ICD-9-CM codes are used in medical billing and coding to describe diseases, injuries, symptoms and conditions. ICD-9-CM 173.91 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.