ICD-10 Code for Migraine

The default ICD-10-CM 2027 code for migraine (idiopathic) is G43.909 – Migraine, unspecified, not intractable, without status migrainosus. More specific codes depend on the details documented, as listed in the official index (44 codes, 44 billable).

Main code: G43.909 – Migraine, unspecified, not intractable, without status migrainosus
Billable: Yes

Index entries for Migraine

with refractory migraine – G43.919
- with status migrainosus – G43.911
- without status migrainosus – G43.919
with aura (acute-onset) (prolonged) (typical) (without headache) – G43.109
- with refractory migraine – G43.119
  - with status migrainosus – G43.111
  - without status migrainosus – G43.119
- chronic – G43.E09
  - with refractory migraine – G43.E19
    - with status migrainosus – G43.E11
    - without status migrainosus – G43.E19
  - intractable
    - with status migrainosus – G43.E11
    - without status migrainosus – G43.E19
  - not intractable
    - with status migrainosus – G43.E01
    - without status migrainosus – G43.E09
  - without refractory migraine – G43.E09
    - with status migrainosus – G43.E01
    - without status migrainosus – G43.E09
- intractable – G43.119
  - with status migrainosus – G43.111
  - without status migrainosus – G43.119
- not intractable – G43.109
  - with status migrainosus – G43.101
  - without status migrainosus – G43.109
- persistent – G43.509
  - with cerebral infarction – G43.609
    - with refractory migraine – G43.619
      - with status migrainosus – G43.611
      - without status migrainosus – G43.619
    - intractable – G43.619
      - with status migrainosus – G43.611
      - without status migrainosus – G43.619
    - not intractable – G43.609
      - with status migrainosus – G43.601
      - without status migrainosus – G43.609
    - without refractory migraine – G43.609
      - with status migrainosus – G43.601
      - without status migrainosus – G43.609
  - without cerebral infarction – G43.509
    - with refractory migraine – G43.519
      - with status migrainosus – G43.511
      - without status migrainosus – G43.519
    - intractable – G43.519
      - with status migrainosus – G43.511
      - without status migrainosus – G43.519
    - not intractable – G43.509
      - with status migrainosus – G43.501
      - without status migrainosus – G43.509
    - without refractory migraine – G43.509
      - with status migrainosus – G43.501
      - without status migrainosus – G43.509
- without mention of refractory migraine – G43.109
  - with status migrainosus – G43.101
  - without status migrainosus – G43.109
abdominal – G43.D0
- with refractory migraine – G43.D1
- intractable – G43.D1
- not intractable – G43.D0
- without refractory migraine – G43.D0
basilar – see Migraine, with aura
classical – see Migraine, with aura
common – see Migraine, without aura
complicated – G43.109
equivalents – see Migraine, with aura
familiar – see Migraine, hemiplegic
hemiplegic – G43.409
- with refractory migraine – G43.419
  - with status migrainosus – G43.411
  - without status migrainosus – G43.419
- intractable – G43.419
  - with status migrainosus – G43.411
  - without status migrainosus – G43.419
- not intractable – G43.409
  - with status migrainosus – G43.401
  - without status migrainosus – G43.409
- without refractory migraine – G43.409
  - with status migrainosus – G43.401
  - without status migrainosus – G43.409
intractable – G43.919
- with status migrainosus – G43.911
- without status migrainosus – G43.919
menstrual – G43.829
- with refractory migraine – G43.839
  - with status migrainosus – G43.831
  - without status migrainosus – G43.839
- intractable – G43.839
  - with status migrainosus – G43.831
  - without status migrainosus – G43.839
- not intractable – G43.829
  - with status migrainosus – G43.821
  - without status migrainosus – G43.829
- without refractory migraine – G43.829
  - with status migrainosus – G43.821
  - without status migrainosus – G43.829
menstrually related – see Migraine, menstrual
not intractable – G43.909
- with status migrainosus – G43.901
- without status migrainosus – G43.909
ophthalmoplegic – G43.B0
- with refractory migraine – G43.B1
- intractable – G43.B1
- not intractable – G43.B0
- without refractory migraine – G43.B0
persistent aura (with, without) – see Migraine, with aura, persistent
preceded or accompanied by transient focal neurological phenomena – see Migraine, with aura
pre-menstrual – see Migraine, menstrual
pure menstrual – see Migraine, menstrual
retinal – see Migraine, with aura
specified NEC – G43.809
- intractable – G43.819
  - with status migrainosus – G43.811
  - without status migrainosus – G43.819
- not intractable – G43.809
  - with status migrainosus – G43.801
  - without status migrainosus – G43.809
sporadic – see Migraine, hemiplegic
transformed – see Migraine, without aura, chronic
triggered seizures – see Migraine, with aura
without aura – G43.009
- with refractory migraine – G43.019
  - with status migrainosus – G43.011
  - without status migrainosus – G43.019
- chronic – G43.709
  - with refractory migraine – G43.719
    - with status migrainosus – G43.711
    - without status migrainosus – G43.719
  - intractable
    - with status migrainosus – G43.711
    - without status migrainosus – G43.719
  - not intractable
    - with status migrainosus – G43.701
    - without status migrainosus – G43.709
  - without refractory migraine – G43.709
    - with status migrainosus – G43.701
    - without status migrainosus – G43.709
- intractable
  - with status migrainosus – G43.011
  - without status migrainosus – G43.019
- not intractable
  - with status migrainosus – G43.001
  - without status migrainosus – G43.009
- without mention of refractory migraine – G43.009
  - with status migrainosus – G43.001
  - without status migrainosus – G43.009
without refractory migraine – G43.909
- with status migrainosus – G43.901
- without status migrainosus – G43.909

How to choose the right code

Start with the main term, then pick the indented subterm that matches the documentation (type, cause, site, laterality, episode of care). Always confirm the code in the tabular list: follow its Excludes1/Excludes2, “code first” and “use additional code” notes, and add a 7th character where required.

Source: CDC/NCHS ICD-10-CM FY2027 alphabetic index.