ICD-10 Code A89
Unspecified viral infection of central nervous system
| ICD-10: | A89 |
| Short Description: | Unspecified viral infection of central nervous system |
| Long Description: | Unspecified viral infection of central nervous system |
Valid for Submission
ICD-10 A89 is a billable code used to specify a medical diagnosis of unspecified viral infection of central nervous system. The code is valid for the year 2019 for the submission of HIPAA-covered transactions.
Code Classification
- Certain infectious and parasitic diseases (A00–B99)
Information for Medical Professionals
Convert A89 to ICD-9
The following crosswalk between ICD-10 to ICD-9 is based based on the General Equivalence Mappings (GEMS) information:
- 049.9 - Viral encephalitis NOS (Approximate Flag)
Synonyms
The following clinical terms are approximate synonyms:
- Non-arthropod-borne viral disease of the central nervous system
- Viral infection of central nervous system
Index to Diseases and Injuries
The Index to Diseases and Injuries is an alphabetical listing of medical terms, with each term mapped to one or more ICD-10 code(s). The following references for the code A89 are found in the index:
Information for Patients
Neurologic Diseases
Also called: Nervous system diseases
The brain, spinal cord, and nerves make up the nervous system. Together they control all the workings of the body. When something goes wrong with a part of your nervous system, you can have trouble moving, speaking, swallowing, breathing, or learning. You can also have problems with your memory, senses, or mood.
There are more than 600 neurologic diseases. Major types include
- Diseases caused by faulty genes, such as Huntington's disease and muscular dystrophy
- Problems with the way the nervous system develops, such as spina bifida
- Degenerative diseases, where nerve cells are damaged or die, such as Parkinson's disease and Alzheimer's disease
- Diseases of the blood vessels that supply the brain, such as stroke
- Injuries to the spinal cord and brain
- Seizure disorders, such as epilepsy
- Cancer, such as brain tumors
- infections, such as meningitis
- Cerebral spinal fluid (CSF) collection (Medical Encyclopedia)
- EEG (Medical Encyclopedia)
[Learn More]
Viral Infections
Viruses are very tiny germs. They are made of genetic material inside of a protein coating. Viruses cause familiar infectious diseases such as the common cold, flu and warts. They also cause severe illnesses such as HIV/AIDS, smallpox, and Ebola.
Viruses are like hijackers. They invade living, normal cells and use those cells to multiply and produce other viruses like themselves. This can kill, damage, or change the cells and make you sick. Different viruses attack certain cells in your body such as your liver, respiratory system, or blood.
When you get a virus, you may not always get sick from it. Your immune system may be able to fight it off.
For most viral infections, treatments can only help with symptoms while you wait for your immune system to fight off the virus. Antibiotics do not work for viral infections. There are antiviral medicines to treat some viral infections. Vaccines can help prevent you from getting many viral diseases.
- ECHO virus (Medical Encyclopedia)
- Enterovirus D68 (Medical Encyclopedia)
- Hand-foot-mouth disease (Medical Encyclopedia)
- Herpangina (Medical Encyclopedia)
- Molluscum contagiosum (Medical Encyclopedia)
- Parainfluenza (Medical Encyclopedia)
- Roseola (Medical Encyclopedia)
- Zika virus disease (Medical Encyclopedia)
[Learn More]
ICD-10 Footnotes
General Equivalence Map Definitions
The ICD-10 and ICD-9 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.