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ICD-10-CM 2027 diagnosis code

G43.5Persistent migraine aura without cerebral infarction

Not billable — use a more specific code

G43.5 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 G43.5

G43.5 is the ICD-10-CM diagnosis code for persistent migraine aura without cerebral infarction. 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, choose G43.5 (Persistent migraine aura without cerebral infarction) only when documentation doesn't support a more specific option: without aura (G43.0), with aura (G43.1), hemiplegic migraine (G43.4), 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: G43.50 (not intractable) and G43.51 (intractable).

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 G43.5

Notes that apply from higher levels

Instructions written at a parent level also apply to G43.5.

› 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 G43.5

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 G43.5

Is G43.5 billable?

No. G43.5 is a header code. Report one of its more specific subcodes instead.