Valid for Submission
A21.1 is a billable diagnosis code used to specify a medical diagnosis of oculoglandular tularemia. The code A21.1 is valid during the fiscal year 2022 from October 01, 2021 through September 30, 2022 for the submission of HIPAA-covered transactions.
The ICD-10-CM code A21.1 might also be used to specify conditions or terms like bacterial corneal ulcer, glandular tularemia, infection caused by francisella, oculoglandular tularemia or tularemia.
Tabular List of Diseases and Injuries
The Tabular List of Diseases and Injuries is a list of ICD-10 codes, organized "head to toe" into chapters and sections with coding notes and guidance for inclusions, exclusions, descriptions and more. The following references are applicable to the code A21.1:
Inclusion TermsInclusion Terms
These terms are the conditions for which that code is to be used. The terms may be synonyms of the code title, or, in the case of "other specified" codes, the terms are a list of the various conditions assigned to that code. The inclusion terms are not necessarily exhaustive. Additional terms found only in the Alphabetic Index may also be assigned to a code.
- Ophthalmic tularemia
Index to Diseases and Injuries
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 the code A21.1 are found in the index:
- - Conjunctivitis (staphylococcal) (streptococcal) NOS - H10.9
- - Tularemia - A21.9
- - Tularensis conjunctivitis - A21.1
The following clinical terms are approximate synonyms or lay terms that might be used to identify the correct diagnosis code:
- Bacterial corneal ulcer
- Glandular tularemia
- Infection caused by Francisella
- Oculoglandular tularemia
Diagnostic Related Groups - MS-DRG Mapping
|MS-DRG||MS-DRG Title||MCD||Relative Weight|
|867||OTHER INFECTIOUS AND PARASITIC DISEASES DIAGNOSES WITH MCC||18||2.2295|
|868||OTHER INFECTIOUS AND PARASITIC DISEASES DIAGNOSES WITH CC||18||1.0584|
|869||OTHER INFECTIOUS AND PARASITIC DISEASES DIAGNOSES WITHOUT CC/MCC||18||0.726|
The relative weight of a diagnostic related group determines the reimbursement rate based on the severity of a patient's illness and the associated cost of care during hospitalization.
Convert A21.1 to ICD-9 Code
Information for Patients
Bacteria are living things that have only one cell. Under a microscope, they look like balls, rods, or spirals. They are so small that a line of 1,000 could fit across a pencil eraser. Most bacteria won't hurt you - less than 1% of the different types make people sick. Many are helpful. Some bacteria help to digest food, destroy disease-causing cells, and give the body needed vitamins. Bacteria are also used in making healthy foods like yogurt and cheese.
But infectious bacteria can make you ill. They reproduce quickly in your body. Many give off chemicals called toxins, which can damage tissue and make you sick. Examples of bacteria that cause infections include Streptococcus, Staphylococcus, and E. coli.
Antibiotics are the usual treatment. When you take antibiotics, follow the directions carefully. Each time you take antibiotics, you increase the chances that bacteria in your body will learn to resist them causing antibiotic resistance. Later, you could get or spread an infection that those antibiotics cannot cure.
NIH: National Institute of Allergy and Infectious Diseases
[Learn More in MedlinePlus]
If you spend time outdoors or have pets that go outdoors, you need to beware of ticks. Ticks are small bloodsucking parasites. Many species transmit diseases to animals and people. Some of the diseases you can get from a tick bite are Lyme disease, ehrlichiosis, Rocky Mountain spotted fever and tularemia.
Some ticks are so small that they can be difficult to see. Ticks may get on you if you walk through areas where they live, such as tall grass, leaf litter or shrubs.
Tick-borne diseases occur worldwide, including in your own backyard. To help protect yourself and your family, you should
- Use a chemical repellent with DEET, permethrin or picaridin
- Wear light-colored protective clothing
- Tuck pant legs into socks
- Avoid tick-infested areas
- Check yourself, your children and your pets daily for ticks and carefully remove any ticks you find
[Learn More in MedlinePlus]