All ICD10 Codes
Chapter 1

A00–B99: Certain Infectious and Parasitic Diseases

Certain Infectious and Parasitic Diseases diagnostic classification updated for 2026.

Chapter Instructions

Includes
  • diseases generally recognized as communicable or transmissible
Excludes1(Not coded here. Use a different code.)
  • certain localized infections - see body system-related chapters
Excludes2(Not included here. Code separately if applicable.)
  • 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)
Use Additional Code
  • code to identify resistance to antimicrobial drugs (Z16.-)
All CodesBillable Only
Internal Codes
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  • B36.2|

    White piedra

  • B36.3|

    Black piedra

  • B36.8|

    Other specified superficial mycoses

  • B36.9|

    Superficial mycosis, unspecified

  • B37.0|

    Candidal stomatitis

  • B37.1|

    Pulmonary candidiasis

  • B37.2|

    Candidiasis of skin and nail

  • B37.31|

    Acute candidiasis of vulva and vagina

  • B37.32|

    Chronic candidiasis of vulva and vagina

  • B37.41|

    Candidal cystitis and urethritis

  • B37.42|

    Candidal balanitis

  • B37.49|

    Other urogenital candidiasis

  • B37.5|

    Candidal meningitis

  • B37.6|

    Candidal endocarditis

  • B37.7|

    Candidal sepsis

  • B37.81|

    Candidal esophagitis

  • B37.82|

    Candidal enteritis

  • B37.83|

    Candidal cheilitis

  • B37.84|

    Candidal otitis externa

  • B37.89|

    Other sites of candidiasis

  • B37.9|

    Candidiasis, unspecified

  • B38.0|

    Acute pulmonary coccidioidomycosis

  • B38.1|

    Chronic pulmonary coccidioidomycosis

  • B38.2|

    Pulmonary coccidioidomycosis, unspecified

  • B38.3|

    Cutaneous coccidioidomycosis

  • B38.4|

    Coccidioidomycosis meningitis

  • B38.7|

    Disseminated coccidioidomycosis

  • B38.81|

    Prostatic coccidioidomycosis

  • B38.89|

    Other forms of coccidioidomycosis

  • B38.9|

    Coccidioidomycosis, unspecified

  • B39.0|

    Acute pulmonary histoplasmosis capsulati

  • B39.1|

    Chronic pulmonary histoplasmosis capsulati

  • B39.2|

    Pulmonary histoplasmosis capsulati, unspecified

  • B39.3|

    Disseminated histoplasmosis capsulati

  • B39.4|

    Histoplasmosis capsulati, unspecified

  • B39.5|

    Histoplasmosis duboisii

  • B39.9|

    Histoplasmosis, unspecified

  • B40.0|

    Acute pulmonary blastomycosis

  • B40.1|

    Chronic pulmonary blastomycosis

  • B40.2|

    Pulmonary blastomycosis, unspecified

  • B40.3|

    Cutaneous blastomycosis

  • B40.7|

    Disseminated blastomycosis

  • B40.81|

    Blastomycotic meningoencephalitis

  • B40.89|

    Other forms of blastomycosis

  • B40.9|

    Blastomycosis, unspecified

  • B41.0|

    Pulmonary paracoccidioidomycosis

  • B41.7|

    Disseminated paracoccidioidomycosis

  • B41.8|

    Other forms of paracoccidioidomycosis

  • B41.9|

    Paracoccidioidomycosis, unspecified

  • B42.0|

    Pulmonary sporotrichosis

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