D38.4Billable
Neoplasm of uncertain behavior of thymus
- Chapter
- 2. Neoplasms
- Category
- D38
- Effective date
- October 1, 2026
Related codes in category D38
D38Neoplm of uncrt behav of mid ear & resp and intrathorac orgD38.0Neoplasm of uncertain behavior of larynxYesD38.1Neoplasm of uncertain behavior of trachea, bronchus and lungYesD38.2Neoplasm of uncertain behavior of pleuraYesD38.3Neoplasm of uncertain behavior of mediastinumYesD38.5Neoplasm of uncertain behavior of other respiratory organsYesD38.6Neoplasm of uncertain behavior of respiratory organ, unspYes
Frequently asked questions
What is ICD-10 code D38.4?
D38.4 is an ICD-10-CM diagnosis code for Neoplasm of uncertain behavior of thymus.
Is D38.4 a billable code?
Yes. D38.4 is billable and specific enough to be used on a claim.
What ICD-10-CM chapter is D38.4 in?
D38.4 falls under Chapter 2: Neoplasms.
When did D38.4 become effective?
D38.4 has been effective since October 1, 2026, per the CMS/CDC ICD-10-CM annual release.
What other codes are related to D38.4?
D38.4 belongs to category D38, which includes 7 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.