D49Header code — not billable
Neoplasms of unspecified behavior
- Chapter
- 2. Neoplasms
- Category
- D49
- Effective date
- October 1, 2026
Related codes in category D49
D49.0Neoplasm of unspecified behavior of digestive systemYesD49.1Neoplasm of unspecified behavior of respiratory systemYesD49.2Neoplasm of unsp behavior of bone, soft tissue, and skinYesD49.3Neoplasm of unspecified behavior of breastYesD49.4Neoplasm of unspecified behavior of bladderYesD49.5Neoplasm of unsp behavior of other genitourinary organsD49.51Neoplasm of unspecified behavior of kidneyD49.511Neoplasm of unspecified behavior of right kidneyYesD49.512Neoplasm of unspecified behavior of left kidneyYesD49.519Neoplasm of unspecified behavior of unspecified kidneyYesD49.59Neoplasm of unspecified behavior of other GU organYesD49.6Neoplasm of unspecified behavior of brainYes
Frequently asked questions
What is ICD-10 code D49?
D49 is an ICD-10-CM diagnosis code for Neoplasms of unspecified behavior.
Is D49 a billable code?
No. D49 is a category/header code, not billable on its own — use one of its more specific child codes instead.
What ICD-10-CM chapter is D49 in?
D49 falls under Chapter 2: Neoplasms.
When did D49 become effective?
D49 has been effective since October 1, 2026, per the CMS/CDC ICD-10-CM annual release.
What other codes are related to D49?
D49 belongs to category D49, which includes 12 other codes — see the related codes list on this page.
ICD-10-CM data maintained by CDC/CMS (public domain). Always verify codes with authoritative sources before making coding or billing decisions.