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Chapter 1 Certain infectious and parasitic diseases (A00-B99)

Includes: diseases generally recognized as communicable or transmissible Use additional code to identify resistance to antimicrobial drugs (Z16.-) Excludes1: certain localized infections – see body system-related chapters Excludes2: carrier or suspected carrier of infectious disease (Z22.-)
infectious and parasitic diseases complicating pregnancy, childbirth and the puerperium (O98.-)
infectious and parasitic diseases specific to the perinatal period (P35-P39)
influenza and other acute respiratory infections (J00-J22)
This chapter contains the following blocks:
A00-A09Intestinal infectious diseases
A15-A19Tuberculosis
A20-A28Certain zoonotic bacterial diseases
A30-A49Other bacterial diseases
A50-A64Infections with a predominantly sexual mode of transmission
A65-A69Other spirochetal diseases
A70-A74Other diseases caused by chlamydiae
A75-A79Rickettsioses
A80-A89Viral and prion infections of the central nervous system
A90-A99Arthropod-borne viral fevers and viral hemorrhagic fevers
B00-B09Viral infections characterized by skin and mucous membrane lesions
B10Other human herpesviruses
B15-B19Viral hepatitis
B20Human immunodeficiency virus [HIV] disease
B25-B34Other viral diseases
B35-B49Mycoses
B50-B64Protozoal diseases
B65-B83Helminthiases
B85-B89Pediculosis, acariasis and other infestations
B90-B94Sequelae of infectious and parasitic diseases
B95-B97Bacterial and viral infectious agents
B99Other infectious diseases

  • A75-A79 Rickettsia (Rickettsioses)

    ICD-10-CM-tabular April 1 2023 Rickettsioses (A75-A79) A75 Typhus fever Excludes1: rickettsiosis due to Ehrlichia sennetsu (A79.81) A75.0 Epidemic louse-borne typhus fever due to Rickettsia prowazekii Classical typhus (fever) Epidemic (louse-borne) typhus A75.1 Recrudescent typhus [Brill’s disease] Brill-Zinsser disease A75.2 Typhus fever due to Rickettsia typhi Murine (flea-borne) typhus A75.3 Typhus fever due to Rickettsia tsutsugamushi […]

  • A70-A74 other diseases caused by chlamydia

    ICD-10-CM-tabular April 1 2023 Excludes1: sexually transmitted chlamydial diseases (A55-A56) A70 Chlamydia psittaci infections Ornithosis Parrot fever Psittacosis A71 Trachoma Excludes1: sequelae of trachoma (B94.0) A71.0 Initial stage of trachoma Trachoma dubium A71.1 Active stage of trachoma Granular conjunctivitis (trachomatous) Trachomatous follicular conjunctivitis Trachomatous pannus A71.9 Trachoma, unspecifiedA74 Other diseases caused by chlamydiae Excludes1: neonatal […]

  • A65-A69 Other Spirochetal Disease

    Other spirochetal diseases (A65-A69) Excludes2: leptospirosis (A27.-)syphilis (A50-A53) A65 Nonvenereal syphilisBejelEndemic syphilisNjovera A66 Yaws Includes: boubaframbesia (tropica)pian A66.0 Initial lesions of yawsChancre of yawsFrambesia, initial or primaryInitial frambesial ulcerMother yaw A66.1 Multiple papillomata and wet crab yawsFrambesiomaPianomaPlantar or palmar papilloma of yaws A66.2 Other early skin lesions of yawsCutaneous yaws, less than five years after […]

  • A50-A64 Infections with sexual mode of transmission

    ICD-10-CM-tabular April 1 2023 Infections with a predominantly sexual mode of transmission Excludes1: human immunodeficiency virus [HIV] disease (B20) nonspecific and nongonococcal urethritis (N34.1) Reiter’s disease (M02.3-) A50 Congenital syphilisA50.0 Early congenital syphilis, symptomatic Any congenital syphilitic condition specified as early or manifest less than two years after birth. A50.1 Early congenital syphilis, latent Congenital […]

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