Specific code 2012 ICD-9-CM Diagnosis Code 191.9
Malignant neoplasm of brain, unspecified
  • 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.
  • You are viewing the 2012 version of ICD-9-CM 191.9.
  • More recent version(s) of ICD-9-CM 191.9: 2013 2014.
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
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 2012 ICD-9-CM Index or use the search engine at the top of this page to lookup any code.