D42Header code — not billable

Neoplasm of uncertain behavior of meninges

Chapter
2. Neoplasms
Category
D42
Effective date
October 1, 2026

Related codes in category D42

D42.0Neoplasm of uncertain behavior of cerebral meningesYesD42.1Neoplasm of uncertain behavior of spinal meningesYesD42.9Neoplasm of uncertain behavior of meninges, unspecifiedYes

Frequently asked questions

What is ICD-10 code D42?

D42 is an ICD-10-CM diagnosis code for Neoplasm of uncertain behavior of meninges.

Is D42 a billable code?

No. D42 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 D42 in?

D42 falls under Chapter 2: Neoplasms.

When did D42 become effective?

D42 has been effective since October 1, 2026, per the CMS/CDC ICD-10-CM annual release.

What other codes are related to D42?

D42 belongs to category D42, which includes 3 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.