Diagnosis Code A20.9
Information for Medical Professionals
The diagnosis code A20.9 is grouped in the following Diagnostic Related Group(s) (MS-DRG V35.0)
- 867 - OTHER INFECTIOUS AND PARASITIC DISEASES DIAGNOSES WITH MCC
- 868 - OTHER INFECTIOUS AND PARASITIC DISEASES DIAGNOSES WITH CC
- 869 - OTHER INFECTIOUS AND PARASITIC DISEASES DIAGNOSES WITHOUT CC/MCC
Convert to ICD-9 General Equivalence Map
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.
- 020.9 - Plague NOS
Information for Patients
Also called: Bubonic plague, Pneumonic plague
Plague is an infection caused by the bacterium Yersinia pestis. The bacteria are found mainly in rats and in the fleas that feed on them. People and other animals can get plague from rat or flea bites. In the past, plague destroyed entire civilizations. Today plague is uncommon, due to better living conditions and antibiotics.
There are three forms of plague:
- Bubonic plague causes the tonsils, adenoids, spleen, and thymus to become inflamed. Symptoms include fever, aches, chills, and tender lymph glands.
- In septicemic plague, bacteria multiply in the blood. It causes fever, chills, shock, and bleeding under the skin or other organs.
- Pneumonic plague is the most serious form. Bacteria enter the lungs and cause pneumonia. People with the infection can spread this form to others. This type could be a bioterror agent.
Lab tests can diagnose plague. Treatment is a strong antibiotic. There is no vaccine.
NIH: National Institute of Allergy and Infectious Diseases
- Plague (Medical Encyclopedia)