2025 ICD-10-CM code R50.83
(Active) Effective Date: N/A Revision Date: N/A Symptoms, signs, and abnormal clinical and laboratory findings - Other specified fever Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified Feed
Postvaccination fever, also known as postimmunization fever, is a fever that occurs after vaccination.
Medical necessity is established when a patient experiences a fever after receiving a vaccine, and the fever is considered a direct consequence of the vaccination.There is no additional medical necessity beyond establishing the temporal relationship between vaccination and the development of fever, and there is no need for a separate justification for the diagnosis.
The clinical responsibility for managing postvaccination fever includes monitoring the patient's temperature, providing symptomatic relief (e.g., antipyretics), and ensuring appropriate hydration.In cases of high fever or other concerning symptoms, further investigation to rule out other causes might be necessary.The physician's role also involves educating the patient about the typical course of postvaccination fever and reassuring them that it is usually self-limiting.
- Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified
- R50-R69 (General symptoms and signs)
In simple words: This code means a fever that happens after you get a shot. It's a side effect of the vaccine.
R50.83, Postvaccination fever (Postimmunization fever), is an ICD-10-CM code that classifies fever occurring as a reaction following vaccination.This code is used when a fever develops after a vaccination and is considered a direct consequence of the immunization.The code should be used in conjunction with other codes to specify the administered vaccine and any other complications that may arise.This code is part of the broader category of general symptoms and signs (R50-R69) and is excluded from codes related to fever of unknown origin during labor (O75.2), fever of unknown origin in newborns (P81.9), or other specific types of fever.
Example 1: A 2-year-old child receives the MMR vaccine and develops a fever of 101°F (38.3°C) 24 hours later. The fever resolves within 48 hours with acetaminophen., A 10-year-old child receives a flu vaccine and experiences a temperature of 102°F (38.9°C) the following day, accompanied by mild muscle aches.The fever subsides within 72 hours with rest and over-the-counter medication., A 65-year-old adult receives a pneumonia vaccine and develops a high fever (103°F or 39.4°C) with chills and rigors.This necessitates a visit to the doctor to rule out other causes of the fever.
Documentation should include the date and type of vaccine administered, the onset and duration of the fever, any associated symptoms (e.g., chills, malaise, myalgias), any medications administered, and the outcome of the fever.If other causes are suspected, documentation of the workup to rule them out is necessary.
** Postvaccination fever is a common and usually self-limiting side effect of vaccination. However, it is important to monitor patients closely for severe symptoms, such as high fever, prolonged fever, or other concerning signs.
- Payment Status: Active
- Specialties:Pediatrics, Family Medicine, Internal Medicine
- Place of Service:Office, Urgent Care Facility, Emergency Room - Hospital