About Chapter 1

This chapter of the ICD-10-CM Tabular List covers Certain infectious and parasitic diseases (A00-B99). It is organized into 22 sections, each containing specific diagnosis codes used for medical billing, documentation, and statistical tracking. Click any section below to explore the codes within that range.

Sections 22 total
Intestinal infectious diseases
A00-A09
A00-A09
Tuberculosis
A15-A19
A15-A19
Certain zoonotic bacterial diseases
A20-A28
A20-A28
Other bacterial diseases
A30-A49
A30-A49
Infections with a predominantly sexual mode of transmission
A50-A64
A50-A64
Other spirochetal diseases
A65-A69
A65-A69
Other diseases caused by chlamydiae
A70-A74
A70-A74
Rickettsioses
A75-A79
A75-A79
Viral and prion infections of the central nervous system
A80-A89
A80-A89
Arthropod-borne viral fevers and viral hemorrhagic fevers
A90-A99
A90-A99
Viral infections characterized by skin and mucous membrane lesions
B00-B09
B00-B09
Other human herpesviruses
B10
B10
Viral hepatitis
B15-B19
B15-B19
Human immunodeficiency virus [HIV] disease
B20
B20
Other viral diseases
B25-B34
B25-B34
Mycoses
B35-B49
B35-B49
Protozoal diseases
B50-B64
B50-B64
Helminthiases
B65-B83
B65-B83
Pediculosis, acariasis and other infestations
B85-B89
B85-B89
Sequelae of infectious and parasitic diseases
B90-B94
B90-B94
Bacterial and viral infectious agents
B95-B97
B95-B97
Other infectious diseases
B99
B99