2024 ICD-10-CM Diagnosis Code Z20.818
Contact with and (suspected) exposure to other bacterial communicable diseases
- ICD-10-CM Code:
- Z20.818
- ICD-10 Code for:
- Contact w and exposure to oth bact communicable diseases
- Is Billable?
- Yes - Valid for Submission
- Code Navigator:
Z20.818 is a billable diagnosis code used to specify a medical diagnosis of contact with and (suspected) exposure to other bacterial communicable diseases. The code is valid during the current fiscal year for the submission of HIPAA-covered transactions from October 01, 2023 through September 30, 2024.
This code describes a circumstance which influences the patient's health status but not a current illness or injury. The code is unacceptable as a principal diagnosis.
Approximate Synonyms
The following clinical terms are approximate synonyms or lay terms that might be used to identify the correct diagnosis code:
- Brucellosis suspected
- Diphtheria suspected
- Exposure to anaerobic bacterial vaginosis
- Exposure to bacterial vaginosis
- Exposure to Bordetella pertussis
- Exposure to Coccidioides immitis
- Exposure to Francisella tularensis
- Exposure to Gardnerella vaginalis
- Exposure to Haemophilus ducreyi
- Exposure to Haemophilus influenzae type b
- Exposure to Klebsiella granulomatis
- Exposure to Legionella
- Exposure to Listeria moncytogenes
- Exposure to Salmonella
- Exposure to streptococcal pharyngitis
- Exposure to Streptococcus
- Exposure to Streptococcus pneumoniae
- Exposure to Vibrio cholerae
- Invasive group A beta-hemolytic streptococcal disease suspected
- Legionella pneumonia suspected
- Leprosy suspected
- Pertussis suspected
- Plague suspected
- Risk of exposure to communicable disease
- Risk of exposure to Leptospira
- Scarlet fever suspected
- Suspected Lyme disease
- Suspected respiratory disease
- Suspected respiratory disease
- Suspected soft tissue infection
- Tetanus suspected
- Typhoid fever suspected
- Typhus suspected
Clinical Classification
Clinical Category is Exposure, encounters, screening or contact with infectious disease
- CCSR Category Code: FAC016
- Inpatient Default CCSR: X - Not applicable.
- Outpatient Default CCSR: Y - Yes, default outpatient assignment for principal diagnosis or first-listed diagnosis.
Index to Diseases and Injuries References
The following annotation back-references for this diagnosis code are found in the injuries and diseases index. The Index to Diseases and Injuries is an alphabetical listing of medical terms, with each term mapped to one or more ICD-10-CM code(s).
- - Contact (with) - See Also: Exposure (to);
- - bacterial disease NEC - Z20.818
- - communicable disease - Z20.9
- - bacterial NEC - Z20.818
- - Exposure (to) - See Also: Contact, with; - T75.89
- - bacterial disease NEC - Z20.818
- - communicable disease - Z20.9
- - bacterial NEC - Z20.818
Code Edits
The Medicare Code Editor (MCE) detects and reports errors in the coding of claims data. The following ICD-10-CM Code Edits are applicable to this code:
- Unacceptable principal diagnosis - There are selected codes that describe a circumstance which influences an individual's health status but not a current illness or injury, or codes that are not specific manifestations but may be due to an underlying cause. These codes are considered unacceptable as a principal diagnosis.
Convert Z20.818 to ICD-9-CM
- ICD-9-CM Code: V01.89 - Communic dis contact NEC
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.
Patient Education
Bacterial Infections
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 types of don't make you sick. Many types are helpful. Some of them 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]
Code History
- FY 2024 - No Change, effective from 10/1/2023 through 9/30/2024
- 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. This was the first year ICD-10-CM was implemented into the HIPAA code set.