ICD-10-CM > G00-G99 > G40-G47 > G44 > G44.2 > G44.20 G44.20 Tension-type headache, unspecified Non-Billable/Non-Specific Codes G44.201Tension-type headache, unspecified, intractableG44.209Tension-type headache, unspecified, not intractable
ICD-10 Fast ICD-10 Fast