G43 is a non-billable/non-specific diagnosis code from the 2025 ICD-10-CM used to classify the following condition: Migraine.
Notes
The following terms are to be considered equivalent to intractable: pharmacoresistant (pharmacologically resistant), treatment resistant, refractory (medically) and poorly controlled
Use additional code
Code for adverse effect, if applicable, to identify drug (T36-T50 with fifth or sixth character 5)
Type 1 excludes
Type 2 excludes
Headache syndromes (G44.-)
Codes
G43.0
Migraine without aura
G43.1
Migraine with aura
G43.4
Hemiplegic migraine
G43.5
Persistent migraine aura without cerebral infarction
G43.6
Persistent migraine aura with cerebral infarction
G43.7
Chronic migraine without aura
G43.A
Cyclical vomiting
G43.B
Ophthalmoplegic migraine
G43.C
Periodic headache syndromes in child or adult
G43.D
Abdominal migraine
G43.8
Other migraine
G43.9
Migraine, unspecified
G43.E
Chronic migraine with aura
Versions
2025
No changes
2024
No changes
2023
No changes
2022
No changes
2021
Code changed
Type 1 excludes
headache NOS (R51)lower half migraine (G44.00)
- headache NOS (R51.9)
- lower half migraine (G44.00)
2020
No changes
2019
No changes
2018
No changes
2017
No changes
2016
New code