C38.3Billable

Malignant neoplasm of mediastinum, part unspecified

Chapter
2. Neoplasms
Category
C38
Effective date
October 1, 2026

Related codes in category C38

C38Malignant neoplasm of heart, mediastinum and pleuraC38.0Malignant neoplasm of heartYesC38.1Malignant neoplasm of anterior mediastinumYesC38.2Malignant neoplasm of posterior mediastinumYesC38.4Malignant neoplasm of pleuraYesC38.8Malig neoplm of ovrlp sites of heart, mediastinum and pleuraYes

Frequently asked questions

What is ICD-10 code C38.3?

C38.3 is an ICD-10-CM diagnosis code for Malignant neoplasm of mediastinum, part unspecified.

Is C38.3 a billable code?

Yes. C38.3 is billable and specific enough to be used on a claim.

What ICD-10-CM chapter is C38.3 in?

C38.3 falls under Chapter 2: Neoplasms.

When did C38.3 become effective?

C38.3 has been effective since October 1, 2026, per the CMS/CDC ICD-10-CM annual release.

What other codes are related to C38.3?

C38.3 belongs to category C38, which includes 6 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.