Specific code 2007 ICD-9-CM Diagnosis Code 173.9
Other malignant neoplasm of skin site unspecified
  • Short description: MALIG NEO SKIN NOS.
  • ICD-9-CM 173.9 is a billable medical code that can be used to indicate a diagnosis on a reimbursement claim, however, 173.9 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 2007 version of ICD-9-CM 173.9.
  • More recent version(s) of ICD-9-CM 173.9: 2008 2009 2010 2011 2012 2013 2014 2015.
  • No ICD-10-CM code(s) convert to ICD-9-CM 173.9
Approximate Synonyms
  • Basal cell carcinoma of skin
  • CA of skin
  • CA skin, basal cell
  • CA skin, squamous cell
  • Cancer of the skin
  • Cancer of the skin, basal cell
  • Cancer of the skin, squamous cell
  • Malignant neoplasm of skin
  • Squamous cell carcinoma of skin
ICD-9-CM Volume 2 Index entries containing back-references to 173.9:
  • Adenocarcinoma (M8140/3) - see also Neoplasm, by site, malignant
    • apocrine (M8401/3)
      • breast - see Neoplasm, breast, malignant
      • specified site NEC - see Neoplasm, skin, malignant
      • unspecified site 173.9
  • Carcinoma (M8010/3) - see also Neoplasm, by site, malignant
    • apocrine (M8401/3)
      • breast - see Neoplasm, breast, malignant
      • specified site NEC - see Neoplasm, skin, malignant
      • unspecified site 173.9
ICD-9-CM codes are used in medical billing and coding to describe diseases, injuries, symptoms and conditions. ICD-9-CM 173.9 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 2007 ICD-9-CM Index or use the search engine at the top of this page to lookup any code.