D33.9
BillableBenign neoplasm of central nervous system, unspecified
HCC Category Mapping
V28HCC 23 — Melanoma and Other Skin Cancers
0.251V24HCC 12 — Breast, Prostate, and Other Cancers and Tumors
0.150ESRDHCC 12 — Breast, Prostate, and Other Cancers and Tumors
0.000RxHCCHCC 22 — Cancer, Other Specified Sites
0.000What This Code Means
A non-cancerous tumor of the brain or spinal cord when the specific location cannot be determined.
Coding Tips
- •This is an unspecified code; query the provider for more specific anatomical location when possible
- •Use only when documentation does not provide enough detail to assign a more specific code
Clinical Significance
Benign neoplasm of the central nervous system, unspecified, represents a benign CNS tumor where the specific anatomical location cannot be determined from the medical record. This code should be rarely necessary given the availability of modern neuroimaging that typically localizes tumors precisely. It may be appropriate as a temporary code pending definitive imaging evaluation.
Documentation Requirements
- ✓Documentation of a benign CNS neoplasm from any source is the minimum requirement.
- ✓All available imaging (MRI brain and/or spine) should be reviewed to determine the specific location.
- ✓Query the provider for clarification if imaging has been performed.
- ✓Document the reason the location remains unspecified.
Commonly Confused Codes
D33.0-D33.7 are site-specific codes preferred when location is knownD32.0-D32.9 (meningeal tumors) are for meningeal locationsD43.9 (CNS uncertain behavior, unspecified) is for when the benign vs. malignant nature is also unclearD33.2 (brain, unspecified) is slightly more specific if the brain is known to be involved.
Code Hierarchy
└D33Benign neoplasm of brain and other parts of central nervous system└D33.9Benign neoplasm of central nervous system, unspecified
└D33.9Benign neoplasm of central nervous system, unspecified