Home > 2012 ICD-9-CM Diagnosis Codes > Neoplasms 140-239 > Malignant Neoplasm Of Bone, Connective Tissue, Skin, And Breast 170-176 > Oth and unspec malignant neoplasm of skin 173-
Specific code 2012 ICD-9-CM Diagnosis Code 173.99
Other specified malignant neoplasm of skin, site unspecified
  • Short description: Oth mal neo skn site NOS.
  • ICD-9-CM 173.99 is a billable medical code that can be used to indicate a diagnosis on a reimbursement claim, however, 173.99 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 173.99.
  • More recent version(s) of ICD-9-CM 173.99: 2013 2014 2015.
Convert to ICD-10-CM: 173.99 converts directly to:
  • 2015/16 ICD-10-CM C44.99 Other specified malignant neoplasm of skin, unspecified
Approximate Synonyms
  • Adenocarcinoma, skin
  • Cancer of the skin, adenocarcinoma
  • Cancer, dermatofibrosarcoma protuberans
  • Dermatofibrosarcoma protuberans
  • Extramammary Paget disease, skin
  • Extramammary Paget's disease of skin
  • Extramammary Pagets of skin
  • Microcystic adnexal carcinoma
  • Microcystic adnexal carcinoma of skin (disorder)
  • Primary adenocarcinoma of skin
  • Sebaceous adenocarcinoma
  • Sebaceous carcinoma
ICD-9-CM Volume 2 Index entries containing back-references to 173.99:
  • 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 173.99
  • 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 173.99
 173.92 ICD9Data.com 174 
ICD-9-CM codes are used in medical billing and coding to describe diseases, injuries, symptoms and conditions. ICD-9-CM 173.99 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.
Free ICD-9-CM Codes
Site Information
Free ICD-10-CM/PCS Codes
Free HCPCS Codes