G43.71 Chronic migraine without aura, intractable

Non-billable header with 2 child codes.

Applicable to

• Chronic migraine without aura, with refractory migraine

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 G43.7 Chronic migraine without aura

Applicable to

• Transformed migraine

Excludes1 (never code together)

• migraine without aura (G43.0-)

Codes under G43.71

• G43.711 Chronic migraine without aura, intractable, with status migrainosus
• G43.719 Chronic migraine without aura, intractable, without status migrainosus

Code annotations containing back-references to G43.71

Back-references to G43.7

• Type 1 Excludes: G43.0 Migraine without aura ("chronic migraine without aura (G43.7-)")

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)")

Nearby codes

• G43.619 Persistent migraine aura with cerebral infarction, intractable, without status migrainosus
• G43.7 Chronic migraine without aura
• G43.70 Chronic migraine without aura, not intractable
• G43.701 Chronic migraine without aura, not intractable, with status migrainosus
• G43.709 Chronic migraine without aura, not intractable, without status migrainosus
• G43.71 Chronic migraine without aura, intractable (this code)
• G43.711 Chronic migraine without aura, intractable, with status migrainosus
• G43.719 Chronic migraine without aura, intractable, without status migrainosus
• G43.A Cyclical vomiting
• G43.A0 Cyclical vomiting, in migraine, not intractable
• G43.A1 Cyclical vomiting, in migraine, intractable