ICD-10-CM & ICD-10-PCS (2021)-ICD-10-CM: Diseases and Injuries (2021)-ICD-10-CM: Drugs and Chemicals (2021)-ICD-10-CM: External Cause of Injuries (2021)-ICD-10-PCS (2021)ICD-10-CM & ICD-10-PCS (2020)-ICD-10-CM: Diseases and Injuries (2020)-ICD-10-CM: Drugs and Chemicals (2020)-ICD-10-CM: External Cause of Injuries (2020)-ICD-10-PCS (2020)ICD-10-CM & ICD-10-PCS (2019)-ICD-10-CM: Diseases and Injuries (2019)-ICD-10-CM: Drugs and Chemicals (2019)-ICD-10-CM: External Cause of Injuries (2019)-ICD-10-PCS (2019)ICD-10-CM & ICD-10-PCS (2018)-ICD-10-CM: Diseases and Injuries (2018)-ICD-10-CM: Drugs and Chemicals (2018)-ICD-10-CM: External Cause of Injuries (2018)-ICD-10-PCS (2018)ICD-10-CM & ICD-10-PCS (2017)-ICD-10-CM: Diseases and Injuries (2017)-ICD-10-CM: Drugs and Chemicals (2017)-ICD-10-CM: External Cause of Injuries (2017)-ICD-10-PCS (2017)ICD-10-CM & ICD-10-PCS (2016)-ICD-10-CM: Diseases and Injuries (2016)-ICD-10-CM: Drugs and Chemicals (2016)-ICD-10-CM: External Cause of Injuries (2016)-ICD-10-PCS (2016) Create codetable from scratch     Show conversion to ICD-9-CM     Contact

Cephalgia, cephalalgia --see also Headache
    histamine G44.009
        intractable G44.001
        not intractable G44.009
    trigeminal autonomic NEC (TAC) G44.099
        intractable G44.091
        not intractable G44.099