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C70.9

C70.9Malignant neoplasm of meninges, unspecified

Billable / specific codeICD-10-CM

C70.9 is a billable, specific ICD-10-CM code for malignant neoplasm of meninges, unspecified. It is valid for submission on a claim.

Risk adjustment

C70.9 risk-adjusts. Under the CMS-HCC V28 model it maps to this category:

  • HCC 20 Lung and Other Severe Cancers1.136 RAF

Coefficient shown for the Community Non-dual Aged segment. A higher HCC in the same hierarchy will suppress this one, so capturing it does not always add score.

Medicare coverage

C70.9 is named in 44 Medicare coverage policies 44 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.

  • A52480Oral Antiemetic Drugs (Replacement for Intravenous Antiemetics) - Policy Article
  • A54768Billing and Coding: Cardiac Blood Pool Imaging (Multiple Gated Acquisition Scanning- MUGA, Ventriculography) When Performed in Conjunction with Cardiotoxic Chemotherapy
  • A55717Billing and Coding: Lab: Flow Cytometry
  • A56464Billing and Coding: Flow Cytometry

Related codes at this level

Codes that share C70. If C70.9 is not quite right, the correct code is usually one of these.

Questions about C70.9

Is C70.9 a billable ICD-10-CM code?
Yes. C70.9 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
Where does C70.9 sit in the tabular list?
Neoplasms (C00-D49), in the block Malignant neoplasms of eye, brain and other parts of central nervous system (C69-C72).
ICD-10-CMFY2026-Apr· effective April 1, 2026

Loaded directly from the CMS/NCHS ICD-10-CM public-domain release — see data sources and our editorial policy. If this page disagrees with the CMS tabular list, this page is wrong. Reference information for professional coders; not medical or billing advice.