2025 ICD-10 CM DIAGNOSIS INDEX TERMS STARTING WITH A

  • Active stage of trachoma - A71.1
  • Trachoma, unspecified - A71.9
  • Chlamydial conjunctivitis - A74.0
  • Other chlamydial diseases - A74.8
  • Chlamydial peritonitis - A74.81
  • Other chlamydial diseases - A74.89
  • Chlamydial infection, unspecified - A74.9
  • Epidemic louse-borne typhus fever due to Rickettsia prowazekii - A75.0
  • Recrudescent typhus [Brill's disease] - A75.1
  • Typhus fever due to Rickettsia typhi - A75.2
  • Typhus fever due to Rickettsia tsutsugamushi - A75.3
  • Typhus fever, unspecified - A75.9
  • Spotted fever due to Rickettsia rickettsii - A77.0
  • Spotted fever due to Rickettsia conorii - A77.1
  • Spotted fever due to Rickettsia siberica - A77.2
  • Spotted fever due to Rickettsia australis - A77.3
  • Ehrlichiosis - A77.4
  • Ehrlichiosis, unspecified - A77.40
  • Ehrlichiosis chaffeensis [E. chaffeensis] - A77.41
  • Other ehrlichiosis - A77.49
  • Other spotted fevers - A77.8
  • Spotted fever, unspecified - A77.9
  • Trench fever - A79.0
  • Rickettsialpox due to Rickettsia akari - A79.1
  • Other specified rickettsioses - A79.8
  • Rickettsiosis due to Ehrlichia sennetsu - A79.81
  • Anaplasmosis [A. phagocytophilum] - A79.82
  • Other specified rickettsioses - A79.89
  • Rickettsiosis, unspecified - A79.9
  • Acute paralytic poliomyelitis, vaccine-associated - A80.0
  • Acute paralytic poliomyelitis, wild virus, imported - A80.1
  • Acute paralytic poliomyelitis, wild virus, indigenous - A80.2
  • Acute paralytic poliomyelitis, other and unspecified - A80.3
  • Acute paralytic poliomyelitis, unspecified - A80.30
  • Other acute paralytic poliomyelitis - A80.39
  • Acute nonparalytic poliomyelitis - A80.4
  • Acute poliomyelitis, unspecified - A80.9
  • Creutzfeldt-Jakob disease - A81.0
  • Creutzfeldt-Jakob disease, unspecified - A81.00
  • Variant Creutzfeldt-Jakob disease - A81.01
  • Other Creutzfeldt-Jakob disease - A81.09
  • Subacute sclerosing panencephalitis - A81.1
  • Progressive multifocal leukoencephalopathy - A81.2
  • Other atypical virus infections of central nervous system - A81.8
  • Kuru - A81.81
  • Gerstmann-Sträussler-Scheinker syndrome - A81.82
  • Fatal familial insomnia - A81.83
  • Other atypical virus infections of central nervous system - A81.89
  • Atypical virus infection of central nervous system, unspecified - A81.9
  • Sylvatic rabies - A82.0
  • Urban rabies - A82.1
  • Rabies, unspecified - A82.9
  • Japanese encephalitis - A83.0
  • Western equine encephalitis - A83.1
  • Eastern equine encephalitis - A83.2
  • St Louis encephalitis - A83.3
  • Australian encephalitis - A83.4
  • California encephalitis - A83.5
  • Rocio virus disease - A83.6
  • Other mosquito-borne viral encephalitis - A83.8
  • Mosquito-borne viral encephalitis, unspecified - A83.9
  • Far Eastern tick-borne encephalitis [Russian spring-summer encephalitis] - A84.0
  • Central European tick-borne encephalitis - A84.1
  • Other tick-borne viral encephalitis - A84.8
  • Powassan virus disease - A84.81
  • Other tick-borne viral encephalitis - A84.89
  • Tick-borne viral encephalitis, unspecified - A84.9
  • Enteroviral encephalitis - A85.0
  • Adenoviral encephalitis - A85.1
  • Arthropod-borne viral encephalitis, unspecified - A85.2
  • Other specified viral encephalitis - A85.8
  • Enteroviral meningitis - A87.0
  • Adenoviral meningitis - A87.1
  • Lymphocytic choriomeningitis - A87.2
  • Other viral meningitis - A87.8
  • Viral meningitis, unspecified - A87.9
  • Enteroviral exanthematous fever [Boston exanthem] - A88.0
  • Epidemic vertigo - A88.1
  • Other specified viral infections of central nervous system - A88.8
  • Chikungunya virus disease - A92.0
  • O'nyong-nyong fever - A92.1
  • Venezuelan equine fever - A92.2
  • West Nile virus infection - A92.3
  • West Nile virus infection, unspecified - A92.30
  • West Nile virus infection with encephalitis - A92.31
  • West Nile virus infection with other neurologic manifestation - A92.32
  • West Nile virus infection with other complications - A92.39
  • Rift Valley fever - A92.4
  • Zika virus disease - A92.5
  • Other specified mosquito-borne viral fevers - A92.8
  • Mosquito-borne viral fever, unspecified - A92.9
  • Oropouche virus disease - A93.0
  • Sandfly fever - A93.1
  • Colorado tick fever - A93.2
  • Other specified arthropod-borne viral fevers - A93.8
  • Sylvatic yellow fever - A95.0
  • Urban yellow fever - A95.1
  • Yellow fever, unspecified - A95.9
  • Junin hemorrhagic fever - A96.0
  • Machupo hemorrhagic fever - A96.1