G43.0
Migraine without aura
Non-billable headerNot valid on its own. Use one of the more specific codes under it.
G43.0 is a non-billable ICD-10-CM code header for migraine without aura. Report a more specific code from it instead. It is part of the FY2027 code set, effective October 1, 2026. The more specific codes under it are G43.00 Migraine without aura, not intractable and G43.01 Migraine without aura, intractable. Its coding notes include a Use additional code instruction, 2 Excludes1 entries and 10 Excludes2 entries.
Use additional code
Add the listed code as a secondary code, if known.
Excludes1
Not coded here. The listed conditions generally should not be reported together.
This code
- chronic migraine without aura (G43.7-)
Excludes2
Not included here. Both codes may be reported if the patient has both conditions.
Also from chapter/block level (8 notes)
Inherited from Chapter 6 Diseases of the nervous system
- certain conditions originating in the perinatal period (P04-P96)
- certain infectious and parasitic diseases (A00-B99)
- complications of pregnancy, childbirth and the puerperium (O00-O9A)
- congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)
- endocrine, nutritional and metabolic diseases (E00-E88)
- injury, poisoning and certain other consequences of external causes (S00-T88)
- neoplasms (C00-D49)
- symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
Inclusion terms
Conditions classified to this code.
This code
- Common migraine
Notes
Inherited from G43 Migraine
- the following terms are to be considered equivalent to intractable: pharmacoresistant (pharmacologically resistant), treatment resistant, refractory (medically) and poorly controlled