D33.1

Applicable To

• Benign neoplasm of brain stem

• Benign neoplasm of cerebellum

• Benign neoplasm of fourth ventricle

Approximate Synonyms

• Benign neoplasm nervous system, medulla

• Benign neoplasm of infratentorial brain

• Benign neoplasm of medulla oblongata

• Benign neoplasm, infratentorial brain

Clinical Information

• Non-malignant neoplasms that arise from cerebellar tissue. During childhood the most common form is pilocytic astrocytoma although fibrillary astrocytomas may also occur. These tumors may present with slowly progressive signs caused by a slowly expanding mass lesion or acutely due to hemorrhage of a vascular tumor. Clinical signs and symptoms may include ataxia, nystagmus, spasticity long tract signs, headache, nausea, vomiting, papilledema, diplopia, spasticity, and weakness, etc.)

Details

• D33.1 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.

• The 2023 edition of ICD-10-CM D33.1 became effective on October 1, 2022.

• This is the American ICD-10-CM version of D33.1 – other international versions of ICD-10 D33.1 may differ.