C71.5
Billable codeMalignant neoplasm of cerebral ventricle
The ICD-10 code for malignant neoplasm of cerebral ventricle is C71.5.
Clinical notes
Excludes1 (not coded here)
An Excludes1 note is a pure exclusion: the excluded condition and this code should never be reported together, because the two conditions cannot occur at the same time (e.g. a congenital form vs. an acquired form of the same disease).
- malignant neoplasm of fourth cerebral ventricle (C71.7)
Documentation support
General coding-documentation guidance — not a substitute for payer-specific requirements or professional coding judgment.
- •Confirm the excluded condition(s) listed above are not also present — Excludes1 conditions cannot be coded together with this one.
- •As a general rule, code to the highest level of specificity supported by the documentation in the medical record.
Related codes in this category
- C71.0Malignant neoplasm of cerebrum, except lobes and ventricles
- C71.1Malignant neoplasm of frontal lobe
- C71.2Malignant neoplasm of temporal lobe
- C71.3Malignant neoplasm of parietal lobe
- C71.4Malignant neoplasm of occipital lobe
- C71.6Malignant neoplasm of cerebellum
- C71.7Malignant neoplasm of brain stem
- C71.8Malignant neoplasm of overlapping sites of brain
- C71.9Malignant neoplasm of brain, unspecified
- C71.5Malignant neoplasm of cerebral ventricle
ICD-9-CM equivalent
Informational only — GEM mappings are approximate, not guaranteed one-to-one equivalents. Verify before use in billing.
- 1915
Associated MS-DRGs
C71.5 can serve as the principal diagnosis for these Medicare Severity Diagnosis-Related Groups.
Informational only — actual DRG assignment also depends on procedures, complications/comorbidities (CC/MCC), discharge status, and payer-specific rules not reflected here.