Neoplasms of unspecified behavior D49

The ICD10 code for the diagnosis "Neoplasms of unspecified behavior" is "D49". D49 is NOT a 'valid' or 'billable' ICD10 code. Please select a more specific diagnosis below.

  • D49 should not be used for reimbursement purposes. Please select a more specific diagnosis below.
  • The 2019 edition of ICD-10-CM D49 became effective on October 1, 2018.
  • This is the American ICD-10-CM version of D49 - other international versions of ICD-10 D49 may differ.
  • Category D49 classifies by site neoplasms of unspecified morphology and behavior. The term 'mass', unless otherwise stated, is not to be regarded as a neoplastic growth.
Type 1 Excludes:
  • neoplasms of uncertain behavior (D37-D44, D48)
  • 'growth' NOS
  • neoplasm NOS
  • new growth NOS
  • tumor NOS

Codes: = Billable

Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.