191.9 MALIG NEO BRAIN NOS

Home > ICD-9 List > Neoplasms > Malignant neoplasm of other and unspecified sites (190-199) > 191 Malignant neoplasm of brain > 191.9

Code Information

Diagnosis Code: 191.9

Short Description: Malig neo brain NOS

Long Description: Malignant neoplasm of brain, unspecified

Code Classification:

Neoplasms (140–239)
- Malignant neoplasm of other and unspecified sites (190-199)
  - 191 Malignant neoplasm of brain
    - 191.9 Malig neo brain NOS

Code Version: 2015 ICD-9-CM

References to Index of Diseases and Injuries

The code 191.9 has the following ICD-9-CM references to the Index of Diseases and Injuries

Astroblastoma (M9430/3)
- unspecified site 191.9

Astrocytoma (cystic) (M9400/3)
- anaplastic type (M9401/3)
  - unspecified site 191.9
- fibrillary (M9420/3)
  - unspecified site 191.9
- fibrous (M9420/3)
  - unspecified site 191.9
- gemistocytic (M9411/3)
  - unspecified site 191.9
- juvenile (M9421/3)
  - unspecified site 191.9
- pilocytic (M9421/3)
  - unspecified site 191.9
- piloid (M9421/3)
  - unspecified site 191.9
- protoplasmic (M9410/3)
  - 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)
  - unspecified site 191.9
- unspecified site 191.9

Gemistocytoma (M9411/3)
- unspecified site 191.9

Glioblastoma (multiforme) (M9440/3)
- with sarcomatous component (M9442/3)
  - unspecified site 191.9
- giant cell (M9441/3)
  - unspecified site 191.9
- unspecified site 191.9

Glioma (malignant) (M9380/3)
- astrocytic (M9400/3)
  - unspecified site 191.9
- mixed (M9382/3)
  - unspecified site 191.9
- unspecified site 191.9

Gliosarcoma (M9380/3)
- unspecified site 191.9

Microglioma (M9710/3)
- unspecified site 191.9

- brain NEC�� 191.9�� 198.3�� -�� 225.0�� 237.5�� 239.6
  - basal ganglia�� 191.0�� 198.3�� -�� 225.0�� 237.5�� 239.6
  - cerebellopontine angle�� 191.6�� 198.3�� -�� 225.0�� 237.5�� 239.6
  - cerebellum NOS�� 191.6�� 198.3�� -�� 225.0�� 237.5�� 239.6
  - cerebrum�� 191.0�� 198.3�� -�� 225.0�� 237.5�� 239.6
  - choroid plexus�� 191.5�� 198.3�� -�� 225.0�� 237.5�� 239.6
  - contiguous sites�� 191.8�� -�� -�� -�� -�� -
  - corpus callosum�� 191.8�� 198.3�� -�� 225.0�� 237.5�� 239.6
  - corpus striatum�� 191.0�� 198.3�� -�� 225.0�� 237.5�� 239.6
  - cortex (cerebral)�� 191.0�� 198.3�� -�� 225.0�� 237.5�� 239.6
  - frontal lobe�� 191.1�� 198.3�� -�� 225.0�� 237.5�� 239.6
  - globus pallidus�� 191.0�� 198.3�� -�� 225.0�� 237.5�� 239.6
  - hippocampus�� 191.2�� 198.3�� -�� 225.0�� 237.5�� 239.6
  - hypothalamus�� 191.0�� 198.3�� -�� 225.0�� 237.5�� 239.6
  - internal capsule�� 191.0�� 198.3�� -�� 225.0�� 237.5�� 239.6
  - medulla oblongata�� 191.7�� 198.3�� -�� 225.0�� 237.5�� 239.6
  - meninges�� 192.1�� 198.4�� -�� 225.2�� 237.6�� 239.7
  - midbrain�� 191.7�� 198.3�� -�� 225.0�� 237.5�� 239.6
  - occipital lobe�� 191.4�� 198.3�� -�� 225.0�� 237.5�� 239.6
  - parietal lobe�� 191.3�� 198.3�� -�� 225.0�� 237.5�� 239.6
  - peduncle�� 191.7�� 198.3�� -�� 225.0�� 237.5�� 239.6
  - pons�� 191.7�� 198.3�� -�� 225.0�� 237.5�� 239.6
  - stem�� 191.7�� 198.3�� -�� 225.0�� 237.5�� 239.6
  - tapetum�� 191.8�� 198.3�� -�� 225.0�� 237.5�� 239.6
  - temporal lobe�� 191.2�� 198.3�� -�� 225.0�� 237.5�� 239.6
  - thalamus�� 191.0�� 198.3�� -�� 225.0�� 237.5�� 239.6
  - uncus�� 191.2�� 198.3�� -�� 225.0�� 237.5�� 239.6
  - ventricle (floor)�� 191.5�� 198.3�� -�� 225.0�� 237.5�� 239.6
- cranial (fossa, any)�� 191.9�� 198.3�� -�� 225.0�� 237.5�� 239.6
  - meninges�� 192.1�� 198.4�� -�� 225.2�� 237.6�� 239.7
  - nerve (any)�� 192.0�� 198.4�� -�� 225.1�� 237.9�� 239.7
- fossa (of)
  - anterior (cranial)�� 191.9�� 198.3�� -�� 225.0�� 237.5�� 239.6
  - cranial�� 191.9�� 198.3�� -�� 225.0�� 237.5�� 239.6
  - middle (cranial)�� 191.9�� 198.3�� -�� 225.0�� 237.5�� 239.6
  - posterior (cranial)�� 191.9�� 198.3�� -�� 225.0�� 237.5�� 239.6
- intracranial NEC�� 191.9�� 198.3�� -�� 225.0�� 237.5�� 239.6
- motor tract�� 192.9�� 198.4�� -�� 225.9�� 237.9�� 239.7
  - brain�� 191.9�� 198.3�� -�� 225.0�� 237.5�� 239.6
- posterior fossa (cranial)�� 191.9�� 198.3�� -�� 225.0 �� 237.5 �� 239.6
- suprasellar (region)�� 191.9�� 198.3�� -�� 225.0�� 237.5�� 239.6

Oligoastrocytoma, mixed (M9382/3)
- unspecified site 191.9

Oligodendroblastoma (M9460/3)
- unspecified site 191.9

Oligodendroglioma (M9450/3)
- anaplastic type (M9451/3)
  - unspecified site 191.9
- unspecified site 191.9

Sarcoma (M8800/3) - see also Neoplasm, connective tissue, malignant
- monstrocellular (M9481/3)
  - unspecified site 191.9

Spongioblastoma (M9422/3)
- multiforme (M9440/3)
  - unspecified site 191.9
- polare (M9423/3)
  - unspecified site 191.9
- primitive polar (M9443/3)
  - unspecified site 191.9
- unspecified site 191.9

Spongiocytoma (M9400/3)
- unspecified site 191.9

Crosswalk Information

The code 191.9 converts into the following ICD-10 code(s):

ICD-9 Code		ICD-10 Code	ICD-10 Description
191.9		C71.9	Malignant neoplasm of brain, unspecified

This ICD-9 to ICD-10 data is based on the 2018 General Equivalency Mapping (GEM) files published by the Centers for Medicare & Medicaid Services (CMS) for informational purposes only. The data is not an ICD-10 conversion tool and doesn’t guarantee clinical accuracy.

Similar Codes

ICD-9 Code	ICD-9 Description
191.0	Malignant neoplasm of cerebrum, except lobes and ventricles
191.1	Malignant neoplasm of frontal lobe
191.2	Malignant neoplasm of temporal lobe
191.3	Malignant neoplasm of parietal lobe
191.4	Malignant neoplasm of occipital lobe
191.5	Malignant neoplasm of ventricles
191.6	Malignant neoplasm of cerebellum nos
191.7	Malignant neoplasm of brain stem
191.8	Malignant neoplasm of other parts of brain

This page was last updated on: 10/1/2014

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