• Hyperpyrexia R50.9
    ICD-10-CM Diagnosis Code R50.9

    Fever, unspecified

      2016 2017 2018 2019 2020 Billable/Specific Code
    Applicable To
    • Fever NOS
    • Fever of unknown origin [FUO]
    • Fever with chills
    • Fever with rigors
    • Hyperpyrexia NOS
    • Persistent fever
    • Pyrexia NOS

    • heat T67.01
      (effects)
      ICD-10-CM Diagnosis Code T67.01

      Heatstroke and sunstroke

        2020 - New Code Non-Billable/Non-Specific Code
      Applicable To
      • Heat apoplexy
      • Heat pyrexia
      • Siriasis
      • Thermoplegia
    • malignant, due to anesthetic T88.3
      ICD-10-CM Diagnosis Code T88.3

      Malignant hyperthermia due to anesthesia

        2016 2017 2018 2019 2020 Non-Billable/Non-Specific Code
      Use Additional
      • code for adverse effect, if applicable, to identify drug (T41.- with fifth or sixth character 5)
    • rheumatic - see Fever, rheumatic
    • unknown origin R50.9
      ICD-10-CM Diagnosis Code R50.9

      Fever, unspecified

        2016 2017 2018 2019 2020 Billable/Specific Code
      Applicable To
      • Fever NOS
      • Fever of unknown origin [FUO]
      • Fever with chills
      • Fever with rigors
      • Hyperpyrexia NOS
      • Persistent fever
      • Pyrexia NOS