D33.9
Billable codeBenign neoplasm of central nervous system, unspecified
The ICD-10 code for benign neoplasm of central nervous system, unspecified is D33.9.
Clinical notes
Also known as
Alternate wording, synonyms, or specific conditions that fall under this code, listed to help confirm you've picked the right one.
- Benign neoplasm of nervous system (central) NOS
Documentation support
General coding-documentation guidance — not a substitute for payer-specific requirements or professional coding judgment.
- •This code describes an unspecified presentation. If the medical record documents a more specific detail (e.g. laterality, type, or affected site), a more specific sibling code should be used instead — see Related codes below.
- •As a general rule, code to the highest level of specificity supported by the documentation in the medical record.
Related codes in this category
- D33.0Benign neoplasm of brain, supratentorial
- D33.1Benign neoplasm of brain, infratentorial
- D33.2Benign neoplasm of brain, unspecified
- D33.3Benign neoplasm of cranial nerves
- D33.4Benign neoplasm of spinal cord
- D33.7Benign neoplasm of other specified parts of central nervous system
- D33.9Benign neoplasm of central nervous system, unspecified
ICD-9-CM equivalent
Informational only — GEM mappings are approximate, not guaranteed one-to-one equivalents. Verify before use in billing.
- 2259Approximate match
Associated MS-DRGs
D33.9 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.