Fevers generally go away within a few days. A number of over-the-counter medications lower a fever, but sometimes it's better left untreated. Commonly used ICD-10 codes for Fevers

ICD-10 Codes for Fevers

ICD-10 code for fever, Treatment for Fevers, Symptoms of Fevers

Table of Contents

A fever is a temporary increase in body temperature, often due to an illness. Having a fever is a sign that something out of the ordinary is going on in your body. For an adult, a fever may be uncomfortable, but usually isn’t a cause for concern unless it reaches 103 F (39.4 C) or higher.

For infants and toddlers, a slightly elevated temperature may indicate a serious infection. Fevers generally go away within a few days. A number of over-the-counter medications lower a fever, but sometimes it’s better left untreated. Fever seems to play a key role in helping your body fight off a number of infections.


You have a fever when your temperature rises above its normal range. What’s normal for you may be a little higher or lower than the average normal temperature of 98.6 F (37 C). Depending on what’s causing your fever, additional fever signs and symptoms may include sweating, chills, shivering, headaches, muscle aches, loss of appetite, irritability, dehydration, and general weakness Children between the ages of 6 months and 5 years might experience febrile seizures. About a third of the children who have one febrile seizure will have another one, most commonly within the next 12 months.


For a low-grade fever, your doctor may not recommend treatment to lower your body temperature. These minor fevers may even be helpful in reducing the number of microbes causing your illness. In the case of a high fever, or a low fever that’s causing discomfort, your doctor may recommend an over-the-counter medication. Depending on the cause of your fever, your doctor may prescribe an antibiotic, especially if he or she suspects a bacterial infection, such as pneumonia or strep throat. For infants, especially those younger than 28 days, your baby might need to be admitted to the hospital for testing and treatment. In babies this young, a fever could indicate a serious infection that requires intravenous (IV) medications and round-the-clock monitoring.
The table below includes the most commonly used ICD-10 codes for fevers:
ICD-10 Chapter Codes Code Description
1 A01.00 Typhoid fever unspecified
1 A01.01 Typhoid meningitis
1 A01.02 Typhoid fever with heart involvement
1 A01.03 Typhoid pneumonia
1 A01.04 Typhoid arthritis
1 A01.05 Typhoid osteomyelitis
1 A01.09 Typhoid fever with other complications
1 A01.1 Paratyphoid fever A
1 A01.2 Paratyphoid fever B
1 A01.3 Paratyphoid fever C
1 A01.4 Paratyphoid fever, unspecified
1 A25.0 Spirillosis
1 A25.1 Streptobacillosis
1 A25.9 Rat-bite fever, unspecified
1 A38.0 Scarlet fever with otitis media
1 A38.1 Scarlet fever with myocarditis
1 A38.8 Scarlet fever with other complications
1 A38.9 Scarlet fever, uncomplicated
1 A68.0 Louse-borne relapsing fever
1 A68.1 Tick-borne relapsing fever
1 A68.9 Relapsing fever, unspecified
1 A75.00 Epidemic louse-borne typhus fever due to Rickettsia prowazekii
1 A75.01 Recrudescent typhus [Brill’s disease]
1 A75.02 Typhus fever due to Rickettsia typhi
1 A75.03 Typhus fever due to Rickettsia tsutsugamushi
1 A75.09 Typhus fever, unspecified
1 A77.0 Spotted fever due to Rickettsia rickettsii
1 A77.1 Spotted fever due to Rickettsia conorii
1 A77.2 Spotted fever due to Rickettsia siberica
1 A77.3 Spotted fever due to Rickettsia australis
1 A77.40 Ehrlichiosis unspecified
1 A77.41 Ehrlichiosis chafeensis [E. chafeensis]
1 A77.49 Other ehrlichiosis
1 A77.8 Other spotted fevers
1 A77.9 Spotted fever, unspecified
1 A78 Q fever
1 A79.0 Trench fever
1 A90 Dengue fever [classical dengue]
1 A91 Dengue hemorrhagic fever
1 A92.0 Chikungunya virus disease
1 A92.1 O’nyong-nyong fever
1 A92.2 Venezuelan equine fever
1 A92.30 West Nile virus infection unspecified
1 A92.31 West Nile virus infection with encephalitis
1 A92.32 West Nile virus infection with other neurologic manifestation
1 A92.39 West Nile virus infection with other complications
1 A92.4 Rift Valley fever
1 A92.5 Zika virus disease
1 A92.8 Other specified mosquito-borne viral fevers
1 A92.9 Mosquito-borne viral fever, unspecified
1 A93.0 Oropouche virus disease
1 A93.1 Sandfly fever
1 A93.2 Colorado tick fever
1 A93.8 Other specified arthropod-borne viral fevers
1 A94 Unspecified arthropod-borne viral fever
1 A95.0 Sylvatic yellow fever
1 A95.1 Urban yellow fever
1 A95.9 Yellow fever, unspecified
1 A96.0 Junin hemorrhagic fever
1 A96.1 Machupo hemorrhagic fever
1 A96.2 Lassa fever
1 A96.8 Other arenaviral hemorrhagic fevers
1 A96.9 Arenaviral hemorrhagic fever, unspecified
1 A98.0 Crimean-Congo hemorrhagic fever
1 A98.1 Omsk hemorrhagic fever
1 A98.2 Kyasanur Forest disease
1 A98.3 Marburg virus disease
1 A98.4 Ebola virus disease
1 A98.5 Hemorrhagic fever with renal syndrome
1 A98.8 Other specified viral hemorrhagic fevers
1 A99 Unspecified viral hemorrhagic fever
9 I00 Rheumatic fever without heart involvement
9 I01 Rheumatic fever with heart involvement
9 I02 Rheumatic chorea
13 M04.1 Periodic fever syndromes
18 R50.2 Drug induced fever
18 R50.81 Fever presenting with conditions classified elsewhere
18 R50.82 Postprocedural fever
18 R50.83 Postvaccination fever
18 R50.84 Febrile nonhemolytic transfusion reaction
18 R50.9 Fever, unspecified

Author: Tonoya Ahmed

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