Information for Patients
Lyme disease is a bacterial infection you get from the bite of an infected tick. The first symptom is usually a red rash, which may look like a bull's eye. But not all people with Lyme disease have a rash. As the infection spreads to other parts of the body, you may have
- A fever
- A headache
- Body aches
- A stiff neck
Lyme disease can be hard to diagnose because many of its symptoms are like those of the flu and other diseases. And you may not have noticed a tick bite. Your health care provider will look at your symptoms and medical history to figure out whether you have Lyme disease. Lab tests may not always give a clear answer until you have been infected for at least a few weeks.
Antibiotics can cure most cases of Lyme disease. The sooner treatment begins, the quicker and more complete the recovery.
After treatment, some patients may still have muscle or joint aches and nervous system symptoms. This is called post-treatment Lyme disease syndrome (PTLDS). Long-term antibiotics have not been shown to help with PTLDS. However, there are ways to help with the symptoms of PTLDS, and most patients do get better with time.
NIH: National Institute of Allergy and Infectious Diseases
- Lyme disease (Medical Encyclopedia)
- Lyme disease antibody (Medical Encyclopedia)
- Ticks and Lyme Disease: Symptoms, Treatment, and Prevention (Food and Drug Administration)
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.