G43.7 — Chronic migraine without aura
G43.7 is a non-billable header ICD-10-CM code for chronic migraine without aura. It cannot be billed on its own: choose one of the more specific child codes below.
Excludes1 — never code together
These conditions cannot occur together. Billing both on the same encounter is a denial.
- migraine without aura (G43.0-)
Inclusion terms
Alternative wordings a physician may use in the chart for this same code.
- Transformed migraine
Other codes that can never be billed with G43.7
These codes carry an Excludes1 note pointing at G43.7. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading G43.7 alone.
- G43.0Migraine without aura
Risk adjustment
G43.7 does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.
Code to one of these instead G43.7
2 child codes. Green means billable.
Related codes at this level
Codes that share G43. If G43.7 is not quite right, the correct code is usually one of these.
- G43.0Migraine without aura
- G43.1Migraine with aura
- G43.4Hemiplegic migraine
- G43.5Persistent migraine aura without cerebral infarction
- G43.6Persistent migraine aura with cerebral infarction
- G43.ACyclical vomiting
- G43.BOphthalmoplegic migraine
- G43.CPeriodic headache syndromes in child or adult
- G43.DAbdominal migraine
- G43.8Other migraine
- G43.9Migraine, unspecified
- G43.EChronic migraine with aura
Questions about G43.7
- Is G43.7 a billable ICD-10-CM code?
- No. G43.7 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
- Where does G43.7 sit in the tabular list?
- Diseases of the nervous system (G00-G99), in the block Episodic and paroxysmal disorders (G40-G47).
- What cannot be coded together with G43.7?
- G43.7 carries an Excludes1 note, which means the conditions it lists can never be coded together with it on the same encounter.