Skip to content
Dx

ICD-10-CM 2027 diagnosis code

G43.1Migraine with aura

Not billable — use a more specific code

G43.1 is a header code, so it can't be reported by itself. Choose one of the 2 more specific codes beneath it.

Code unchanged since ICD-10-CM took effect on October 1, 2015. Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data

About G43.1

G43.1 is the ICD-10-CM diagnosis code for migraine with aura. It belongs to category G43 (migraine), block G40-G47 (episodic and paroxysmal disorders) and chapter 6 (diseases of the nervous system). It is a header code, so it can't be reported by itself; one of its 2 subcodes must be used instead.

Within G43 (migraine), G43.1 is specifically for migraine with aura. Related codes cover without aura (G43.0), hemiplegic migraine (G43.4), persistent migraine aura without cerebral infarction (G43.5), persistent migraine aura with cerebral infarction (G43.6), chronic migraine without aura (G43.7), other migraine (G43.8), unspecified (G43.9), Cyclical vomiting (G43.A) and 4 more.

To report this condition, pick the subcode that matches the documentation: G43.10 (not intractable) and G43.11 (intractable).

Don't report G43.1 together with the conditions in its Excludes1 note: chronic migraine with aura (G43.E-) and persistent migraine aura (G43.5-, G43.6-).

Use an additional code for adverse effect, if applicable, to identify drug (T36-T50 with fifth or sixth character 5).

It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.

Specific codes under G43.1

Coding notes

Applicable toConditions and synonyms classified to this code
  • Basilar migraine
  • Classical migraine
  • Migraine equivalents
  • Migraine preceded or accompanied by transient focal neurological phenomena
  • Migraine triggered seizures
  • Migraine with acute-onset aura
  • Migraine with aura without headache (migraine equivalents)
  • Migraine with prolonged aura
  • Migraine with typical aura
  • Retinal migraine
Excludes1Not coded here — never report together with this code
Code alsoTwo codes may be needed; sequencing depends on circumstances

Notes that apply from higher levels

Instructions written at a parent level also apply to G43.1.

› From G43 Migraine
Note
  • the following terms are to be considered equivalent to intractable: pharmacoresistant (pharmacologically resistant), treatment resistant, refractory (medically) and poorly controlled
Excludes1
Excludes2
  • headache NOS (R51.9)
  • headache syndromes (G44.-)
Use additional code
  • code for adverse effect, if applicable, to identify drug (T36-T50 with fifth or sixth character 5)

Broader instructions also apply from Chapter 6: Diseases of the nervous system.

Codes whose notes reference G43.1

Code history

  1. 2016
  2. 2017
  3. 2018
  4. 2019
  5. 2020
  6. 2021
  7. 2022
  8. 2023
  9. 2024
  10. 2025
  11. 2026
  12. 2027
  • FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
  • No changes since FY2016.

Common questions about G43.1

Is G43.1 billable?

No. G43.1 is a header code. Report one of its more specific subcodes instead.