Specific code 2007 ICD-9-CM Diagnosis Code 186.0
Malignant neoplasm of undescended testis
  • Short description: MAL NEO UNDESCEND TESTIS.
  • ICD-9-CM 186.0 is a billable medical code that can be used to indicate a diagnosis on a reimbursement claim, however, 186.0 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 186.0.
  • More recent version(s) of ICD-9-CM 186.0: 2008 2009 2010 2011 2012 2013 2014 2015.
Convert to ICD-10-CM: 186.0 converts approximately to:
  • 2015/16 ICD-10-CM C62.00 Malignant neoplasm of unspecified undescended testis
Approximate Synonyms
  • Cancer of the testis, undescended
  • Cancer, left undescended testis
  • Cancer, right undescended testis
  • Primary malignant neoplasm of left undescended testis
  • Primary malignant neoplasm of right undescended testis
  • Primary malignant neoplasm of undescended testis
  • Testicular cancer, L undescended testis
  • Testicular cancer, R undescended testis
  • Testicular cancer, undescended testis
Applies To
  • Ectopic testis
  • Retained testis
ICD-9-CM Volume 2 Index entries containing back-references to 186.0:
  • Embryoma (M9080/1) - see also Neoplasm, by site, uncertain behavior
    • malignant (M9080/3) - see also Neoplasm, by site, malignant
      • kidney (M8960/3) 189.0
      • liver (M8970/3) 155.0
      • testis (M9070/3) 186.9
        • undescended 186.0
    • testis (M9070/3) 186.9
      • undescended 186.0
  • Teratoma (solid) (M9080/1) - see also Neoplasm, by site, uncertain behavior
    • testis (M9080/3) 186.9
      • adult, benign, cystic, differentiated type or mature (M9080/0) 222.0
      • undescended 186.0
ICD-9-CM codes are used in medical billing and coding to describe diseases, injuries, symptoms and conditions. ICD-9-CM 186.0 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.