D33.9 – Benign neoplasm of central nervous system, unspecified
ICD-10-CM 2027 diagnosis code · Benign neoplasms, except benign neuroendocrine tumors
ICD-10-CM code
D33.9
- Code
D33.9(claims format:D339)- Description
- Benign neoplasm of central nervous system, unspecified
- Billable
- Yes – valid for HIPAA-covered transactions
- Valid for
- Dates of service October 1, 2026 – September 30, 2027 (FY2027)
- Chapter
- 2. Neoplasms (C00-D49)
- Block
- D10-D36 Benign neoplasms, except benign neuroendocrine tumors
- Parent codes
- D33
Notes for D33.9
Applicable to:
- Benign neoplasm of nervous system (central) NOS
Notes inherited from parent codes
Instructional notes at a category or block level apply to every code below it.
D33 – Benign neoplasm of brain and other parts of central nervous system
Related codes in D33
- D33.0 – Benign neoplasm of brain, supratentorialBillable
- D33.1 – Benign neoplasm of brain, infratentorialBillable
- D33.2 – Benign neoplasm of brain, unspecifiedBillable
- D33.3 – Benign neoplasm of cranial nervesBillable
- D33.4 – Benign neoplasm of spinal cordBillable
- D33.7 – Benign neoplasm of other specified parts of central nervous systemBillable
Frequently asked questions
What is ICD-10 code D33.9?
D33.9 is the ICD-10-CM code for benign neoplasm of central nervous system, unspecified, in the block D10-D36 (Benign neoplasms, except benign neuroendocrine tumors).
Is D33.9 a billable code?
Yes. D33.9 is a billable/specific code that can be used to indicate a diagnosis for reimbursement purposes.
What category does D33.9 belong to?
It belongs to category D33 – Benign neoplasm of brain and other parts of central nervous system.
Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.