G43.909 Migraine, unspecified, not intractable, without status migrainosus
Billable ICD-10-CM code, FY2026.
Applicable to
Migraine NOS
Applies from G43 Migraine
Excludes1 (never code together)
headache NOS (R51.9)
lower half migraine (G44.00)
Excludes2 (not included here)
headache syndromes (G44.-)
Use additional code
code for adverse effect, if applicable, to identify drug (T36-T50 with fifth or sixth character 5)
Notes
the following terms are to be considered equivalent to intractable: pharmacoresistant (pharmacologically resistant), treatment resistant, refractory (medically) and poorly controlled
Applies from G43.90 Migraine, unspecified, not intractable
Applicable to
Migraine, unspecified, without refractory migraine
Risk adjustment (HCC)
RxHCC V08: HCC 166 — Migraine Headaches
MS-DRG index
Defines the logic of DRG(s) 102-103 in MDC 01.
Approximate ICD-9-CM (GEMs)
346.90 Migraine, unspecified, without mention of intractable migraine without mention of status migrainosus
Code annotations containing back-references to G43.909
Back-references to G43
Type 2 Excludes: G44 Other headache syndromes ("migraines (G43.-)")
Type 2 Excludes: G44.1 Vascular headache, not elsewhere classified ("migraine (G43.-)")
Type 2 Excludes: G89 Pain, not elsewhere classified ("migraines (G43.-)")
Type 2 Excludes: R51 Headache ("migraine and other headache syndromes (G43-G44)")
Diagnosis Index entries for G43.909
Headache › migraine (type)
Hemicrania › meaning migraine
Migraine (idiopathic)
Migraine (idiopathic) › not intractable
Migraine (idiopathic) › not intractable › without status migrainosus
Migraine (idiopathic) › without refractory migraine
Migraine (idiopathic) › without refractory migraine › without status migrainosus
Syndrome › migraine
Nearby codes
G43.831 Menstrual migraine, intractable, with status migrainosus
G43.839 Menstrual migraine, intractable, without status migrainosus