Created by Alejandra Munoz, CPC, NCICS
Infectious and parasitic diseases are reported from Chapter 1 of ICD-10-CM Infectious diseases occur when a pathogen invades the body and causes disease.
Bacteria are one-celled organisms that are named according to their shapes and arrangements. o Bacterial infections include: o Salmonella o E. coli o Streptococci o Mycobacterium tuberculosis
Fungi – Microscopic plant life that lacks chlorophyll and must have a source of matter for nutrition. Common fungal infections: o Yeast infections o Molds
Organisms that feed on other organisms to nourish themselves. Common parasites include: o Protozoa o Helminths o Arthropods
Viruses are the smallest of infectious pathogens. Common viral infections include: o Herpes zoster- shingles o Varicella- chickenpox o HIV- AIDS o Herpes simplex- genital herpes o RNA virus- German measles
This range of codes includes cholera, shingellosis, and other bacterial infections. Food poisoning and viral intestinal infections are also found here. Common symptoms include: nausea, vomiting, anorexia, abdominal pain, fever, muscular aches, and malaise.
Tuberculosis is caused by Mycobacterium tuberculosis. Reference the instructional notations found at the beginning of the section. Symptoms include: fatigue, weakness, loss of appetite and weight, coughing, hemoptysis, night sweats, and increased temperature later in the day and evening.
Certain Zoonotic Bacterial Diseases- A20- A28 Other Bacterial Diseases- A30-A49 Infections with a Predominantly Sexual Mode of Transmission- A50-A64 Other Spirochetal Diseases
Other Diseases caused by Chlamydiae- A70- A74 Richettioses- A75-A79 Viral Infections of the Central Nervous System- A80-A89 Arthropod-Borne Viral Fevers and Viral Hemorrhagic Fevers- A90-A99
Viral Infections Characterized by Skin and Mucus and Mucous Membrane Lesions- B00-B09 Other Human Herpes Viruses- B10 Viral Hepatitis- B15-B19 Human Immunodeficiency Virus Disease- B20 Other Viral Diseases- B25-B34
Mycoses- B35-B49 Protozoal Diseases- B50-B64 Helminthiases- B65-B83 Pediculosis, Acariasis, and Other Infestations- B85-B89 Sequela of Infectious and Parasitic Diseases- B90-B94 Bacterial and Viral Infectious Agents- B95-B97 Other Infectious Diseases- B99
Single, combination, and dual code assignment are used for coding in this chapter of ICD-10-CM. An underlying condition/infection is sequenced first, followed by the manifestation code. Coders should be cautious when reporting HIV cases and reference documentation prior to code assignment.
Reference the Official ICD-10-CM Coding Guidelines for chapter-specific guidelines on: o HIV infections o Infectious agents as the cause of disease classified to other chapters o Infections resistant to antibiotics o Sepsis, severe sepsis, and septic shock
Bowie, M. (2014). Understanding ICD-10-CM & ICD-10-PCS. Cengage