Information for Patients
Also called: Spinal meningitis
Meningitis is inflammation of the thin tissue that surrounds the brain and spinal cord, called the meninges. There are several types of meningitis. The most common is viral meningitis, which you get when a virus enters the body through the nose or mouth and travels to the brain. Bacterial meningitis is rare, but can be deadly. It usually starts with bacteria that cause a cold-like infection. It can block blood vessels in the brain and lead to stroke and brain damage. It can also harm other organs. Pneumococcal infections and meningococcal infections can cause bacterial meningitis.
Anyone can get meningitis, but it is more common in people whose bodies have trouble fighting infections. Meningitis can progress rapidly. You should seek medical care quickly if you have
- A sudden fever
- A severe headache
- A stiff neck
Early treatment can help prevent serious problems, including death. Vaccines can prevent some of the bacterial infections that cause meningitis. Parents of adolescents and students living in college dorms should talk to a doctor about the vaccination.
NIH: National Institute of Neurological Disorders and Stroke
- Cerebral spinal fluid (CSF) collection
- Cerebrospinal fluid culture
- Meningitis - cryptococcal
- Meningitis - gram-negative
- Meningitis - H. influenzae
- Meningitis - meningococcal
- Meningitis - pneumococcal
- Meningitis - staphylococcal
- Meningitis - tuberculous
- Meningococcal Vaccines: What You Need to Know (Centers for Disease Control and Prevention)
- Pneumococcal Conjugate Vaccine: What You Need to Know (Centers for Disease Control and Prevention)
- Pneumococcal Polysaccharide Vaccine: What You Need to Know (Immunization Action Coalition)
- Syphilitic aseptic meningitis
Also called: TB
Tuberculosis (TB) is a disease caused by bacteria called Mycobacterium tuberculosis. The bacteria usually attack the lungs, but they can also damage other parts of the body.
TB spreads through the air when a person with TB of the lungs or throat coughs, sneezes, or talks. If you have been exposed, you should go to your doctor for tests. You are more likely to get TB if you have a weak immune system.
Symptoms of TB in the lungs may include
- A bad cough that lasts 3 weeks or longer
- Weight loss
- Loss of appetite
- Coughing up blood or mucus
- Weakness or fatigue
- Night sweats
Skin tests, blood tests, x-rays, and other tests can tell if you have TB. If not treated properly, TB can be deadly. You can usually cure active TB by taking several medicines for a long period of time.
NIH: National Institute of Allergy and Infectious Diseases
- Acid-fast stain
- Coughing up blood
- Disseminated tuberculosis
- Meningitis - tuberculous
- Multidrug-Resistant Tuberculosis (MDR TB) (Centers for Disease Control and Prevention)
- Mycobacterial culture
- PPD skin test
- Pulmonary tuberculosis
- Routine sputum culture
- Taking medicines to treat tuberculosis
- Tuberculosis Facts - Exposure to TB (Centers for Disease Control and Prevention)
- Tuberculosis Facts - TB Can Be Treated (Centers for Disease Control and Prevention)
- Tuberculosis Facts - Testing for TB (Centers for Disease Control and Prevention)
- Tuberculosis Facts - You Can Prevent TB (Centers for Disease Control and Prevention)
- Tuberculosis: General Information (Centers for Disease Control and Prevention)
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.