G43.019 Migraine without aura, intractable, without status migrainosus
Billable ICD-10-CM code, FY2026.
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 G43.0 Migraine without aura
Applicable to
Common migraine
Excludes1 (never code together)
chronic migraine without aura (G43.7-)
Applies from G43.01 Migraine without aura, intractable
Applicable to
Migraine without aura with 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)
346.11 Migraine without aura, with intractable migraine, so stated, without mention of status migrainosus
Code annotations containing back-references to G43.019
Back-references to G43.0
Type 1 Excludes: G43.7 Chronic migraine without aura ("migraine without aura (G43.0-)")
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 G43.019
Migraine (idiopathic) › without aura › with refractory migraine
Migraine (idiopathic) › without aura › with refractory migraine › without status migrainosus
Migraine (idiopathic) › without aura › intractable › without status migrainosus