ICD-9 Code 191.9
Malignant neoplasm of brain, unspecified
Not Valid for Submission
191.9 is a legacy non-billable code used to specify a medical diagnosis of malignant neoplasm of brain, unspecified. This code was replaced on September 30, 2015 by its ICD-10 equivalent.
ICD-9: | 191.9 |
Short Description: | Malig neo brain NOS |
Long Description: | Malignant neoplasm of brain, unspecified |
Convert 191.9 to ICD-10
The following crosswalk between ICD-9 to ICD-10 is based based on the General Equivalence Mappings (GEMS) information:
- C71.9 - Malignant neoplasm of brain, unspecified
Code Classification
-
Neoplasms (140–239)
-
Malignant neoplasm of other and unspecified sites (190-199)
- 191 Malignant neoplasm of brain
-
Malignant neoplasm of other and unspecified sites (190-199)
Information for Medical Professionals
Index to Diseases and Injuries
References found for the code 191.9 in 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
- anaplastic type M9401 3
- 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
- anaplastic type M9392 3
- 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
- with sarcomatous component M9442 3
- Glioma malignant M9380 3
- astrocytic M9400 3
- unspecified site 191.9
- mixed M9382 3
- unspecified site 191.9
- unspecified site 191.9
- astrocytic M9400 3
- Gliosarcoma M9380 3
- unspecified site 191.9
- Microglioma M9710 3
- unspecified site 191.9
- nbsp
- brain NEC NEC "Not elsewhere classifiable"
This abbreviation in the index represents “other specified” when a specific code is not available for a condition the index directs the coder to the “other specified” code in the tabular. 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 NEC "Not elsewhere classifiable"
This abbreviation in the index represents “other specified” when a specific code is not available for a condition the index directs the coder to the “other specified” code in the tabular. 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
- brain NEC NEC "Not elsewhere classifiable"
- 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
- anaplastic type M9451 3
- Sarcoma M8800 3 SEE ALSO See Also
A “see also” instruction following a main term in the index instructs that there is another main term that may also be referenced that may provide additional index entries that may be useful. It is not necessary to follow the “see also” note when the original main term provides the necessary code. Neoplasm conNEC NEC "Not elsewhere classifiable"
This abbreviation in the index represents “other specified” when a specific code is not available for a condition the index directs the coder to the “other specified” code in the tabular.tive tissue malignant- monstrocellular M9481 3
- unspecified site 191.9
- monstrocellular M9481 3
- 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
- multiforme M9440 3
- Spongiocytoma M9400 3
- unspecified site 191.9
Information for Patients
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
[Read More]
ICD-9 Footnotes
General Equivalence Map Definitions
The ICD-9 and ICD-10 GEMs are used to facilitate linking between the diagnosis codes in ICD-9-CM and the new ICD-10-CM code set. The GEMs are the raw material from which providers, health information vendors and payers can derive specific applied mappings to meet their needs.
- Approximate Flag - The approximate flag is on, indicating that the relationship between the code in the source system and the code in the target system is an approximate equivalent.
- No Map Flag - The no map flag indicates that a code in the source system is not linked to any code in the target system.
- Combination Flag - The combination flag indicates that more than one code in the target system is required to satisfy the full equivalent meaning of a code in the source system.
Index of Diseases and Injuries Definitions
- And - The word "and" should be interpreted to mean either "and" or "or" when it appears in a title.
- Code also note - A "code also" note instructs that two codes may be required to fully describe a condition, but this note does not provide sequencing direction.
- Code first - Certain conditions have both an underlying etiology and multiple body system manifestations due to the underlying etiology. For such conditions, the ICD-10-CM has a coding convention that requires the underlying condition be sequenced first followed by the manifestation. Wherever such a combination exists, there is a "use additional code" note at the etiology code, and a "code first" note at the manifestation code. These instructional notes indicate the proper sequencing order of the codes, etiology followed by manifestation.
- Type 1 Excludes Notes - A type 1 Excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
- Type 2 Excludes Notes - A type 2 Excludes note represents "Not included here". An excludes2 note indicates that the condition excluded is not part of the condition represented by the code, but a patient may have both conditions at the same time. When an Excludes2 note appears under a code, it is acceptable to use both the code and the excluded code together, when appropriate.
- Includes Notes - This note appears immediately under a three character code title to further define, or give examples of, the content of the category.
- Inclusion terms - List of terms is included under some codes. These terms are the conditions for which that code is to be used. The terms may be synonyms of the code title, or, in the case of "other specified" codes, the terms are a list of the various conditions assigned to that code. The inclusion terms are not necessarily exhaustive. Additional terms found only in the Alphabetic Index may also be assigned to a code.
- NEC "Not elsewhere classifiable" - This abbreviation in the Alphabetic Index represents "other specified". When a specific code is not available for a condition, the Alphabetic Index directs the coder to the "other specified” code in the Tabular List.
- NOS "Not otherwise specified" - This abbreviation is the equivalent of unspecified.
- See - The "see" instruction following a main term in the Alphabetic Index indicates that another term should be referenced. It is necessary to go to the main term referenced with the "see" note to locate the correct code.
- See Also - A "see also" instruction following a main term in the Alphabetic Index instructs that there is another main term that may also be referenced that may provide additional Alphabetic Index entries that may be useful. It is not necessary to follow the "see also" note when the original main term provides the necessary code.
- 7th Characters - Certain ICD-10-CM categories have applicable 7th characters. The applicable 7th character is required for all codes within the category, or as the notes in the Tabular List instruct. The 7th character must always be the 7th character in the data field. If a code that requires a 7th character is not 6 characters, a placeholder X must be used to fill in the empty characters.
- With - The word "with" should be interpreted to mean "associated with" or "due to" when it appears in a code title, the Alphabetic Index, or an instructional note in the Tabular List. The word "with" in the Alphabetic Index is sequenced immediately following the main term, not in alphabetical order.