A01.00 is a billable ICD-10 code used to specify a medical diagnosis of typhoid fever, unspecified. The code is valid during the fiscal year 2023 from October 01, 2022 through September 30, 2023 for the submission of HIPAA-covered transactions.
Unspecified diagnosis codes like A01.00 are acceptable when clinical information is unknown or not available about a particular condition. Although a more specific code is preferable, unspecified codes should be used when such codes most accurately reflect what is known about a patient's condition. Specific diagnosis codes should not be used if not supported by the patient's medical record.
The following clinical terms are approximate synonyms or lay terms that might be used to identify the correct diagnosis code:
- Infection of intestine caused by Salmonella group D
- Typhoid fever
- Typhoid Fever-. an acute systemic febrile infection caused by salmonella typhi, a serotype of salmonella enterica.
- Paratyphoid Fever-. a condition resembling typhoid fever that is caused by infection by salmonella enterica serovar parathyphi.
- Paratyphoid Fever A-. paratyphoid fever that is caused by infection with salmonella enterica, serovar paratyphi a.
- Paratyphoid Fever B-. paratyphoid fever that is caused by infection with salmonella enterica, serovar paratyphi b.
- Paratyphoid Fever C-. paratyphoid fever that is caused by infection with salmonella enterica, serovar paratyphi c.
- Typhoid Fever-. a bacterial infectious disorder contracted by consumption of food or drink contaminated with salmonella typhi. this disorder is common in developing countries and can be treated with antibiotics.
Index to Diseases and Injuries References
The Index to Diseases and Injuries is an alphabetical listing of medical terms, with each term mapped to one or more ICD-10 code(s). The following references for this diagnosis code are found in the injuries and diseases index:
- - Eberth's disease (typhoid fever) - A01.00
- - Fever (inanition) (of unknown origin) (persistent) (with chills) (with rigor) - R50.9
- - enteric - A01.00
- - gastroenteric - A01.00
- - typhogastric - A01.00
- - typhoid (abortive) (hemorrhagic) (intermittent) (malignant) - A01.00
- - Infection, infected, infective (opportunistic) - B99.9
- - Typhoid (abortive) (ambulant) (any site) (clinical) (fever) (hemorrhagic) (infection) (intermittent) (malignant) (rheumatic) (Widal negative) - A01.00
- - Typhomania - A01.00
Convert to ICD-9 Code
|Source ICD-10 Code||Target ICD-9 Code|
|A01.00||002.0 - Typhoid fever|
|Approximate Flag - The approximate mapping means there is not an exact match between the ICD-10 and ICD-9 codes and the mapped code is not a precise representation of the original code.|
Salmonella is the name of a group of bacteria. In the United States, it is a common cause of foodborne illness. Salmonella occurs in raw poultry, eggs, beef, and sometimes on unwashed fruit and vegetables. You also can get infected after handling pets, especially reptiles like snakes, turtles, and lizards.
- Abdominal cramps
- Possible nausea, vomiting, and loss of appetite
Symptoms usually last 4-7 days. Your health care provider diagnoses the infection with a stool test. Most people get better without treatment. Infection can be more serious in older adults, infants, and people with chronic health problems. If Salmonella gets into the bloodstream, it can be serious. The usual treatment is antibiotics.
Typhoid fever, a more serious disease caused by Salmonella, is not common in the United States. It frequently occurs in developing countries.
NIH: National Institute of Allergy and Infectious Diseases
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- FY 2023 - No Change, effective from 10/1/2022 through 9/30/2023
- FY 2022 - No Change, effective from 10/1/2021 through 9/30/2022
- FY 2021 - No Change, effective from 10/1/2020 through 9/30/2021
- FY 2020 - No Change, effective from 10/1/2019 through 9/30/2020
- FY 2019 - No Change, effective from 10/1/2018 through 9/30/2019
- FY 2018 - No Change, effective from 10/1/2017 through 9/30/2018
- FY 2017 - No Change, effective from 10/1/2016 through 9/30/2017
- FY 2016 - New Code, effective from 10/1/2015 through 9/30/2016 (First year ICD-10-CM implemented into the HIPAA code set)