Non-Billable / Non-Specific Code
ICD-10-CM C71 is the diagnosis code for Malignant neoplasm of brain. This code falls under the section "Malignant neoplasms of eye, brain and other parts of central nervous system" within Chapter 2 — Neoplasms (C00-D49). It is a non-billable/non-specific ICD-10-CM code that should not be used for reimbursement. A more specific sub-code is required for billing. Medical coders and healthcare providers use this code to document and classify diagnoses in electronic health records, insurance claims, and clinical databases.
The following conditions should never be coded at the same time as C71. They are mutually exclusive:
Understanding where C71 sits in the ICD-10-CM classification helps ensure proper coding:
No, C71 is a non-billable/non-specific code. You should use a more specific sub-code for billing and reimbursement.
C71 is the ICD-10-CM diagnosis code for "Malignant neoplasm of brain". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.
C71 is located in Section C69-C72 — "Malignant neoplasms of eye, brain and other parts of central nervous system" within Chapter 2 of the ICD-10-CM Tabular List.
C71 has 10 sub-code(s) that provide more specific detail: C71.0, C71.1, C71.2, C71.3, C71.4 and more.
Use C71 when the patients documented diagnosis matches "Malignant neoplasm of brain" and the clinical documentation supports this level of specificity. Always verify with the latest ICD-10-CM guidelines and payer requirements.
The ICD-10-CM code for Malignant neoplasm of brain is C71.
No, C71 is non-billable. Use a more specific sub-code for primary diagnosis billing.
C71 is in Chapter 2 of the ICD-10-CM Tabular List.
Type 1 Excludes for C71 include: malignant neoplasm of cranial nerves (C72.2-C72.5); retrobulbar malignant neoplasm (C69.6-).
Yes, C71 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.