Home > 2015 ICD-9-CM Diagnosis Codes > Neoplasms 140-239 > Malignant Neoplasm Of Respiratory And Intrathoracic Organs 160-165 > Malignant neoplasm of other and ill-defined sites within the respiratory system and intrathoracic organs 165-
Specific code 2015 ICD-9-CM Diagnosis Code 165.9
Malignant neoplasm of ill-defined sites within the respiratory system
  • 2015
  • Billable Thru Sept 30/2015
  • Non-Billable On/After Oct 1/2015

  • ICD-9-CM 165.9 is a billable medical code that can be used to indicate a diagnosis on a reimbursement claim, however, 165.9 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).
Convert to ICD-10-CM: 165.9 converts approximately to:
  • 2015/16 ICD-10-CM C39.9 Malignant neoplasm of lower respiratory tract, part unspecified
Clinical Information
  • Malignant neoplasms originating in the respiratory tract
165.9 Excludes
Applies To
  • Respiratory tract NOS
 165.8 ICD9Data.com 170 
ICD-9-CM codes are used in medical billing and coding to describe diseases, injuries, symptoms and conditions. ICD-9-CM 165.9 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 2015 ICD-9-CM Index or use the search engine at the top of this page to lookup any code.
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