G43
ICD-10Non-billable categoryMigraine
Official ICD-10-CM descriptor (FY2026)
Migraine
G43 is a category heading, not a billable code. CMS does not accept it on a claim; report one of the more specific codes beneath it.
Excludes1
Not coded here. An Excludes1 code should never be reported at the same time as the code above it.
- headache NOS (R51.9)
- lower half migraine (G44.00)
Excludes2
Not included here. The condition is not part of this code, but a patient may have both, and both codes may be reported together.
- headache syndromes (G44.-)
Use additional code
Report an additional code to identify the associated condition.
- code for adverse effect, if applicable, to identify drug (T36-T50 with fifth or sixth character 5)
Notes
- the following terms are to be considered equivalent to intractable: pharmacoresistant (pharmacologically resistant), treatment resistant, refractory (medically) and poorly controlled
More specific codes under G43
- G43.0Migraine without auracategory
- G43.1Migraine with auracategory
- G43.4Hemiplegic migrainecategory
- G43.5Persistent migraine aura without cerebral infarctioncategory
- G43.6Persistent migraine aura with cerebral infarctioncategory
- G43.7Chronic migraine without auracategory
- G43.ACyclical vomitingcategory
- G43.BOphthalmoplegic migrainecategory
- G43.CPeriodic headache syndromes in child or adultcategory
- G43.DAbdominal migrainecategory
- G43.8Other migrainecategory
- G43.9Migraine, unspecifiedcategory
- G43.EChronic migraine with auracategory
Where this code sits
Krasyn AI Coder
Get code suggestions automatically as you type notes. Free for 50 analyses.
Install for Chrome — freeSource
ICD-10-CM FY2026. Centers for Medicare & Medicaid Services (CMS) / National Center for Health Statistics (NCHS), “2026 ICD-10-CM Code Descriptions in Tabular Order” (icd10cm_order_2026.txt). Download the original file from cms.gov. Public domain (US Government work). Descriptors, billable flags and instructional notes on this page are reproduced from that file without modification. Krasyn adds no clinical guidance.