A20.3 is a billable and specific ICD-10-CM code. Accurate documentation of A20.3 facilitates proper diagnosis, effective management, and correct reimbursement.
This guideline will provide the use, official coding guidelines, and historical background of A20.3.
What is the ICD-10-CM Diagnosis Code for Plague meningitis?
The ICD-10-CM diagnosis code for Plague meningitis is A20.3.
Plague is a serious infectious disease caused by the bacterium Yersinia pestis. It spreads through infected fleas, animals, or droplets from sick people.
Plague meningitis is a rare but serious infection of the brain and spinal cord caused by Yersinia pestis. It usually happens when plague spreads from the blood to the brain.
Symptoms include high fever, stiff neck, headache, nausea, sensitivity to light, and confusion. It can occur after untreated bubonic or septicemic plague
Diagnosis is done through a spinal tap and lab tests. Treatment includes high-dose antibiotics and supportive care. Early treatment is critical to prevent brain damage or death.
Proper documentation using A20.3 ensures patients receive appropriate care and enables accurate healthcare reimbursement.
History Background of ICD-10-CM Diagnosis Code A20.3
The ICD-9-CM system, first introduced in 1979, provided the initial framework for coding diseases and health-related conditions in the United States.
The ICD-9-CM diagnosis code for Plague meningitis falls under the category of 020.8 (Other specified types of plague).This coding remained consistent from 1979 to 2015.
While the ICD-9-CM system offered a basic approach to disease classification, modern healthcare needs more detail and specificity.
To address this, the ICD-10-CM system was launched in 2015, introducing a more comprehensive and accurate coding structure.
The transition from ICD-9-CM to ICD-10-CM significantly improved the ability to document and analyze conditions such as Plague meningitis.
The 2025 edition of ICD-10-CM A20.3 became effective on October 1, 2024.
| Year | ICD-10-CM Code | Description |
| 2020 | A20.3 | No Change |
| 2021 | A20.3 | No Change |
| 2022 | A20.3 | No Change |
| 2023 | A20.3 | No Change |
| 2024 | A20.3 | No Change |
| 2025 | A20.3 | No Change |
Other ICD-10-CM Diagnosis Codes in A20
ICD-10-CM code A20 | Plague has following sub categories including A20.3 :
- A20 Respiratory tuberculosis.
- A20.0 Bubonic plague.
- A20.1 Cellulocutaneous plague.
- A20.2 Pneumonic plague.
- A20.3 Plague meningitis.
- A20.7 Septicemic plague.
- A20.8 Other forms of plague.
- A20.9 Plague, unspecified.
Final Thought
Proper coding of A20.3 is essential for diagnosing and managing Plague meningitis. A clear understanding of its History, and correct usage enhances medical documentation and ensures effective treatment, patient care, supports healthcare planning, and guarantees proper reimbursement for medical services.
