C71.9 – Malignant neoplasm of brain, unspecified
ICD-10-CM 2027 diagnosis code · Malignant neoplasms of eye, brain and other parts of central nervous system
- Code
C71.9(claims format:C719)- Description
- Malignant neoplasm of brain, 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
- C69-C72 Malignant neoplasms of eye, brain and other parts of central nervous system
- Parent codes
- C71
Notes inherited from parent codes
Instructional notes at a category or block level apply to every code below it.
C71 – Malignant neoplasm of brain
Index terms for C71.9
Entries in the ICD-10-CM alphabetic index that lead to this code:
- Glioma, unspecified site
- Ependymoma, unspecified site
- Gliosarcoma, unspecified site
- Astroglioma, unspecified site
- Astrocytoma, unspecified site
- Glioblastoma, unspecified site
- Astroblastoma, unspecified site
- Glioma, mixed, unspecified site
- Gemistocytoma, unspecified site
- Spongioblastoma, unspecified site
- Ependymoblastoma, unspecified site
- Oligoastrocytoma, unspecified site
- Oligodendroglioma, unspecified site
- Xanthoastrocytoma, unspecified site
- Glioma, astrocytic, unspecified site
- Astrocytoma, piloid, unspecified site
- Oligodendroblastoma, unspecified site
- Astrocytoma, fibrous, unspecified site
- Astrocytoma, juvenile, unspecified site
- Ependymoma, anaplastic, unspecified site
- Astrocytoma, pilocytic, unspecified site
- Astrocytoma, anaplastic, unspecified site
- Astrocytoma, fibrillary, unspecified site
- Glioblastoma, giant cell, unspecified site
- Sarcoma, monstrocellular, unspecified site
Related codes in C71
- C71.0 – Malignant neoplasm of cerebrum, except lobes and ventriclesBillable
- C71.1 – Malignant neoplasm of frontal lobeBillable
- C71.2 – Malignant neoplasm of temporal lobeBillable
- C71.3 – Malignant neoplasm of parietal lobeBillable
- C71.4 – Malignant neoplasm of occipital lobeBillable
- C71.5 – Malignant neoplasm of cerebral ventricleBillable
- C71.6 – Malignant neoplasm of cerebellumBillable
- C71.7 – Malignant neoplasm of brain stemBillable
- C71.8 – Malignant neoplasm of overlapping sites of brainBillable
Frequently asked questions
What is ICD-10 code C71.9?
C71.9 is the ICD-10-CM code for malignant neoplasm of brain, unspecified, in the block C69-C72 (Malignant neoplasms of eye, brain and other parts of central nervous system).
Is C71.9 a billable code?
Yes. C71.9 is a billable/specific code that can be used to indicate a diagnosis for reimbursement purposes.
What category does C71.9 belong to?
It belongs to category C71 – Malignant neoplasm of brain.
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.