2024 ICD-10-CM Diagnosis Code C71.6

Malignant neoplasm of cerebellum

ICD-10-CM Code:
ICD-10 Code for:
Malignant neoplasm of cerebellum
Is Billable?
Yes - Valid for Submission
Chronic Condition Indicator: [1]
Code Navigator:

Code Classification

  • Neoplasms
    • Malignant neoplasms of eye, brain and other parts of central nervous system
      • Malignant neoplasm of brain

C71.6 is a billable diagnosis code used to specify a medical diagnosis of malignant neoplasm of cerebellum. The code is valid during the current fiscal year for the submission of HIPAA-covered transactions from October 01, 2023 through September 30, 2024.

The following anatomical sites found in the Table of Neoplasms reference this diagnosis code given the correct histological behavior: Neoplasm, neoplastic brain NEC cerebellopontine angle or Neoplasm, neoplastic brain NEC cerebellum NOS or Neoplasm, neoplastic cerebellopontine (angle) or Neoplasm, neoplastic cerebellum, cerebellar or Neoplasm, neoplastic vermis, cerebellum .

Approximate Synonyms

The following clinical terms are approximate synonyms or lay terms that might be used to identify the correct diagnosis code:

  • Cerebellopontine angle tumor
  • Classic medulloblastoma
  • Glioblastoma multiforme of brain
  • Low grade glioma of cerebellum
  • Malignant glioma of cerebellum
  • Malignant neoplasm of cerebellopontine angle
  • Malignant neoplasm of cerebellum
  • Malignant neoplasm of pons
  • Medulloblastoma
  • Medulloblastoma of cerebellum
  • Primary classic medulloblastoma
  • Primary glioblastoma multiforme of brain
  • Primary glioblastoma multiforme of cerebellum
  • Primary malignant glioma of cerebellum
  • Primary malignant neoplasm of cerebellum
  • Primary medulloblastoma of cerebellum

Clinical Classification

Clinical Information

  • Medulloblastoma

    a malignant neoplasm that may be classified either as a glioma or as a primitive neuroectodermal tumor of childhood (see neuroectodermal tumor, primitive). the tumor occurs most frequently in the first decade of life with the most typical location being the cerebellar vermis. histologic features include a high degree of cellularity, frequent mitotic figures, and a tendency for the cells to organize into sheets or form rosettes. medulloblastoma have a high propensity to spread throughout the craniospinal intradural axis. (from devita et al., cancer: principles and practice of oncology, 5th ed, pp2060-1)

Index to Diseases and Injuries References

The following annotation back-references for this diagnosis code are found in the injuries and diseases index. The Index to Diseases and Injuries is an alphabetical listing of medical terms, with each term mapped to one or more ICD-10-CM code(s).

Convert C71.6 to ICD-9-CM

  • ICD-9-CM Code: 191.6 - Mal neo cerebellum NOS

Table of Neoplasms

This code is referenced in the table of neoplasms by anatomical site. For each site there are six possible code numbers according to whether the neoplasm in question is malignant, benign, in situ, of uncertain behavior, or of unspecified nature. The description of the neoplasm will often indicate which of the six columns is appropriate.

Where such descriptors are not present, the remainder of the Index should be consulted where guidance is given to the appropriate column for each morphological (histological) variety listed. However, the guidance in the Index can be overridden if one of the descriptors mentioned above is present.

Neoplasm, neoplastic Malignant
CaInSitu Benign Uncertain
»Neoplasm, neoplastic
  »brain NEC
    »cerebellopontine angle
C71.6C79.31 D33.1D43.1D49.6
»Neoplasm, neoplastic
  »brain NEC
    »cerebellum NOS
C71.6C79.31 D33.1D43.1D49.6
»Neoplasm, neoplastic
  »cerebellopontine (angle)
C71.6C79.31 D33.1D43.1D49.6
»Neoplasm, neoplastic
  »cerebellum, cerebellar
C71.6C79.31 D33.1D43.1D49.6
»Neoplasm, neoplastic
  »vermis, cerebellum
C71.6C79.31 D33.1D43.1D49.6

Patient Education

Brain Tumors

A brain tumor is a growth of abnormal cells in the tissues of the brain. Brain tumors can be benign, with no cancer cells, or malignant, with cancer cells that grow quickly. Some are primary brain tumors, which start in the brain. Others are metastatic, and they start somewhere else in the body and move to the brain.

Brain tumors can cause many symptoms. Some of the most common are:

  • Headaches, often in the morning
  • Nausea and vomiting
  • Changes in your ability to talk, hear, or see
  • Problems with balance or walking
  • Problems with thinking or memory
  • Feeling weak or sleepy
  • Changes in your mood or behavior
  • Seizures

Doctors diagnose brain tumors by doing a neurologic exam and tests including an MRI, CT scan, and biopsy. Treatment options include watchful waiting, surgery, radiation therapy, chemotherapy, and targeted therapy. Targeted therapy uses drugs or other substances that attack cancer cells with less harm to normal cells. Many people get a combination of treatments.

NIH: National Cancer Institute

[Learn More in MedlinePlus]

Brain Tumors-Patient Version

Learn about brain and spinal cord tumor risk factors, symptoms, tests to diagnose, factors affecting prognosis, and treatment.
[Learn More in MedlinePlus]

Code History

  • FY 2024 - No Change, effective from 10/1/2023 through 9/30/2024
  • FY 2023 - No Change, effective from 10/1/2022 through 9/30/2023
  • FY 2022 - No Change, effective from 10/1/2021 through 9/30/2022
  • FY 2021 - No Change, effective from 10/1/2020 through 9/30/2021
  • FY 2020 - No Change, effective from 10/1/2019 through 9/30/2020
  • FY 2019 - No Change, effective from 10/1/2018 through 9/30/2019
  • FY 2018 - No Change, effective from 10/1/2017 through 9/30/2018
  • FY 2017 - No Change, effective from 10/1/2016 through 9/30/2017
  • FY 2016 - New Code, effective from 10/1/2015 through 9/30/2016. This was the first year ICD-10-CM was implemented into the HIPAA code set.


[1] Chronic - a chronic condition code indicates a condition lasting 12 months or longer and its effect on the patient based on one or both of the following criteria:

  • The condition results in the need for ongoing intervention with medical products,treatment, services, and special equipment
  • The condition places limitations on self-care, independent living, and social interactions.