C38Header code — not billable

Malignant neoplasm of heart, mediastinum and pleura

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

Related codes in category C38

C38.0Malignant neoplasm of heartYesC38.1Malignant neoplasm of anterior mediastinumYesC38.2Malignant neoplasm of posterior mediastinumYesC38.3Malignant neoplasm of mediastinum, part unspecifiedYesC38.4Malignant neoplasm of pleuraYesC38.8Malig neoplm of ovrlp sites of heart, mediastinum and pleuraYes

Frequently asked questions

What is ICD-10 code C38?

C38 is an ICD-10-CM diagnosis code for Malignant neoplasm of heart, mediastinum and pleura.

Is C38 a billable code?

No. C38 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 C38 in?

C38 falls under Chapter 2: Neoplasms.

When did C38 become effective?

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

What other codes are related to C38?

C38 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.