Is C72.9 a billable ICD-10-CM code?

Yes. C72.9 is a billable, specific ICD-10-CM code and is valid for submission on a claim.

Where does C72.9 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).

What cannot be coded together with C72.9?

C72.9 carries Excludes1 notes, which means the conditions they list can never be coded together with it on the same encounter. Some are written on the categories above C72.9 (C72) and apply to it just the same.

C72.9

C72.9 — Malignant neoplasm of central nervous system, unspecified

Billable / specific codeICD-10-CM

C72.9 is a billable, specific ICD-10-CM code for malignant neoplasm of central nervous system, unspecified. It is valid for submission on a claim.

Inclusion terms

Alternative wordings a physician may use in the chart for this same code.

Malignant neoplasm of unspecified site of central nervous system
Malignant neoplasm of nervous system NOS

Excludes1 inherited from the categories above C72.9

These are not written on C72.9, but they bind it: a note on a category applies to every code beneath it. Billing C72.9 with anything listed here is a denial.

Written on C72 — Malignant neoplasm of spinal cord, cranial nerves and other parts of central nervous system

malignant neoplasm of meninges (C70.-)
malignant neoplasm of peripheral nerves and autonomic nervous system (C47.-)

Risk adjustment

C72.9 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

C72.9 is named in 57 Medicare coverage policies — 57 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.

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Code history

C72.9 has not changed since FY2024 — no addition, revision or deletion across the three most recent ICD-10-CM releases.

Related codes at this level

Codes that share C72. If C72.9 is not quite right, the correct code is usually one of these.

Questions about C72.9

Is C72.9 a billable ICD-10-CM code?: Yes. C72.9 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
Where does C72.9 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).
What cannot be coded together with C72.9?: C72.9 carries Excludes1 notes, which means the conditions they list can never be coded together with it on the same encounter. Some are written on the categories above C72.9 (C72) and apply to it just the same.