ICD-10-CM > G00-G99 > G40-G47 > G43 > G43.C > G43.C1 G43.C1 Periodic headache syndromes in child or adult, intractable Billable/Specific Copy Code Copy Description Applicable To Periodic headache syndromes in child or adult, with refractory migraine
ICD-10 Fast ICD-10 Fast