Specific code 2014 ICD-9-CM Diagnosis Code 191.9
Malignant neoplasm of brain, unspecified
  • Billable Code
  • Short description: Malig neo brain NOS.
  • ICD-9-CM 191.9 will be replaced by an equivalent ICD-10-CM code (or codes) when the United States transitions from ICD-9-CM to ICD-10-CM on October 1, 2015.
  • ICD-9-CM 191.9 is a billable medical code that can be used to specify a diagnosis on a reimbursement claim.
Disease Synonyms
  • Anaplastic astrocytoma of brain
  • Anaplastic astrocytoma, brain
  • Anaplastic glioma of brain
  • Anaplastic glioma, brain
  • Astrocytoma of brain
  • Astrocytoma of brain, grade 2
  • Astrocytoma of brain, high grade
  • Astrocytoma of brain, low grade
  • Astrocytoma, brain
  • Astrocytoma, brain grade 2
  • Astrocytoma, brain high grade
  • Astrocytoma, brain low grade
  • Brain cancer
  • Brain cancer metastatic to spinal cord
  • Brain cancer, high grade astrocytoma
  • Brain cancer, low grade astrocytoma
  • Cancer brain anaplastic astrocytom malig gliom gr3
  • Cancer of the brain
  • Cancer of the brain metastatic to spinal cord
  • Cancer of the brain, anaplastic glioma
  • Cancer of the brain, astrocytoma
  • Cancer of the brain, astrocytoma, grade 2
  • Cancer of the brain, ependymoma
  • Cancer of the brain, glioblastoma
  • Cancer of the brain, malignant glioma
  • Cancer of the brain, malignant glioma grade 4
  • Cancer of the brain, malignant glioma low grade
  • Cancer of the brain, oligodendroglioma
  • Ependymoma of brain
  • Ependymoma, brain
  • Glioblastoma multiforme of brain
  • Glioblastoma, brain
  • Malignant glioma of brain
  • Malignant glioma of brain, grade 4
  • Malignant glioma of brain, low grade
  • Malignant glioma, brain
  • Malignant glioma, brain grade 4
  • Malignant glioma, brain low grade
  • Neoplasm, primitive neuroectodermal (PNET)
  • Oligodendroglioma of brain
  • Oligodendroglioma, brain
  • Primary malignant neoplasm of brain
  • Primitive neuroectodermal tumor
  • Secondary malignant neoplasm of spinal cord from neoplasm of brain
Clinical Information
  • A primary or metastatic malignant neoplasm affecting the brain.
  • Cancer of the brain is usually called a brain tumor. There are two main types. A primary brain tumor starts in the brain. A metastatic brain tumor starts somewhere else in the body and moves to the brain. Brain tumors can be benign, with no cancer cells, or malignant, with cancer cells that grow quickly.brain tumors can cause many symptoms. Some of the most common are
    • headaches, usually worse 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
    • muscle jerking or twitching
    • numbness or tingling in arms or legs
    doctors diagnose brain tumors by doing a neurologic exam and tests including an mri, ct scan, and biopsy. People with brain tumors have several treatment options. The options are surgery, radiation therapy, and chemotherapy. Many people get a combination of treatments. nih: national cancer institute
Applies To
  • Cranial fossa NOS
Convert to ICD-10-CM: 191.9 converts directly to:
  • 2014 ICD-10-CM C71.9 Malignant neoplasm of brain, unspecified
ICD-9-CM Volume 2 Index entries containing back-references to 191.9:
  • Astroblastoma (M9430/3)
    • unspecified site 191.9
  • Astrocytoma (cystic) (M9400/3)
    • anaplastic type (M9401/3)
      • specified site - see Neoplasm, by site, malignant
      • unspecified site 191.9
    • fibrillary (M9420/3)
      • specified site - see Neoplasm, by site, malignant
      • unspecified site 191.9
    • fibrous (M9420/3)
      • specified site - see Neoplasm, by site, malignant
      • unspecified site 191.9
    • gemistocytic (M9411/3)
      • specified site - see Neoplasm, by site, malignant
      • unspecified site 191.9
    • juvenile (M9421/3)
      • specified site - see Neoplasm, by site, malignant
      • unspecified site 191.9
    • pilocytic (M9421/3)
      • specified site - see Neoplasm, by site, malignant
      • unspecified site 191.9
    • piloid (M9421/3)
      • specified site - see Neoplasm, by site, malignant
      • unspecified site 191.9
    • protoplasmic (M9410/3)
      • specified site - see Neoplasm, by site, malignant
      • unspecified site 191.9
    • unspecified site 191.9
  • Astroglioma (M9400/3)
    • unspecified site 191.9
  • Ependymoblastoma (M9392/3)
    • unspecified site 191.9
  • Ependymoma (epithelial) (malignant) (M9391/3)
    • anaplastic type (M9392/3)
      • specified site - see Neoplasm, by site, malignant
      • unspecified site 191.9
    • unspecified site 191.9
  • Gemistocytoma (M9411/3)
    • unspecified site 191.9
  • Glioblastoma (multiforme) (M9440/3)
    • with sarcomatous component (M9442/3)
      • specified site - see Neoplasm, by site, malignant
      • unspecified site 191.9
    • giant cell (M9441/3)
      • specified site - see Neoplasm, by site, malignant
      • unspecified site 191.9
    • unspecified site 191.9
  • Glioma (malignant) (M9380/3)
    • astrocytic (M9400/3)
      • specified site - see Neoplasm, by site, malignant
      • unspecified site 191.9
    • mixed (M9382/3)
      • specified site - see Neoplasm, by site, malignant
      • unspecified site 191.9
    • unspecified site 191.9
  • Gliosarcoma (M9380/3)
    • unspecified site 191.9
  • Microglioma (M9710/3)
    • unspecified site 191.9
  • Oligoastrocytoma, mixed (M9382/3)
    • unspecified site 191.9
  • Oligodendroblastoma (M9460/3)
    • unspecified site 191.9
  • Oligodendroglioma (M9450/3)
    • anaplastic type (M9451/3)
      • specified site - see Neoplasm, by site, malignant
      • unspecified site 191.9
    • unspecified site 191.9
  • Sarcoma (M8800/3) - see also Neoplasm, connective tissue, malignant
    • monstrocellular (M9481/3)
      • specified site - see Neoplasm, by site, malignant
      • unspecified site 191.9
  • Spongioblastoma (M9422/3)
    • multiforme (M9440/3)
      • specified site - see Neoplasm, by site, malignant
      • unspecified site 191.9
    • polare (M9423/3)
      • specified site - see Neoplasm, by site, malignant
      • unspecified site 191.9
    • primitive polar (M9443/3)
      • specified site - see Neoplasm, by site, malignant
      • unspecified site 191.9
    • unspecified site 191.9
  • Spongiocytoma (M9400/3)
    • unspecified site 191.9
ICD-9-CM codes are used in medical billing and coding to describe diseases, injuries, symptoms and conditions. ICD-9-CM 191.9 is one of thousands of ICD-9-CM codes used in healthcare. Although ICD-9-CM and CPT codes are largely numeric, they differ in that CPT codes describe medical procedures and services. Can't find a code? Start at the root of ICD-9-CM, check the 2014 ICD-9-CM Index or use the search engine at the top of this page to lookup any code.