C70.0 MALIGNANT NEOPLASM OF CEREBRAL MENINGES

Code Information

Diagnosis Code: C70.0
Short Description: Malignant neoplasm of cerebral meninges
Long Description: Malignant neoplasm of cerebral meninges
Code Version: 2025 ICD-10-CM

The code C70.0 is VALID for claim submission

Code Classification

Neoplasms (C00–D49)
- Malignant neoplasms of eye, brain and other parts of central nervous system (C69-C72)
  - Malignant neoplasm of meninges (C70)

Synonyms

Diffuse leptomeningeal melanocytosis
Diffuse melanosis of meninges
Intracranial meningioma
Intracranial meningioma
Malignant meningioma of meninges of brain
Malignant meningioma of optic nerve sheath
Malignant neoplasm of brain meninges
Malignant neoplasm of cerebral arachnoid mater
Malignant neoplasm of cerebral dura mater
Malignant neoplasm of cerebral pia mater
Malignant neoplasm of optic nerve
Malignant neoplasm of optic nerve and sheath
Malignant neoplasm of optic nerve sheath
Malignant neoplasm of optic nerve sheath
Meningioma of optic nerve sheath
Meningioma of optic nerve sheath
Primary malignant meningioma
Primary malignant meningioma of meninges of brain
Primary malignant meningioma of optic nerve sheath
Primary malignant neoplasm of brain meninges
Primary malignant neoplasm of meninges
Primary malignant neoplasm of meninges
Primary melanocytic lesion of meninges

Crosswalk Information

ICD-10 Code		ICD-9 Code	ICD-9 Description
C70.0		192.1	Mal neo cerebral mening

This ICD-10 to ICD-9 data is based on the 2018 General Equivalency Mapping (GEM) files published by the Centers for Medicare & Medicaid Services (CMS) for informational purposes only. The data is not an ICD-10 conversion tool and doesn’t guarantee clinical accuracy.

Similar Codes

ICD-10 Code	ICD-10 Description
C70	Malignant neoplasm of meninges
C70.1	Malignant neoplasm of spinal meninges
C70.9	Malignant neoplasm of meninges, unspecified

This page was last updated on: 10/1/2025

Previous Code

Next Code