G43.821 Menstrual migraine, not intractable, with status migrainosus
ICD-10-CM · CMS code reference
Official ICD-10-CM description: Menstrual migraine, not intractable, with status migrainosus
Coding notes
From the ICD-10-CM FY2027 (effective October 1, 2026) tabular list. Notes on a parent code or category apply here too.
Note
- the following terms are to be considered equivalent to intractable: pharmacoresistant (pharmacologically resistant), treatment resistant, refractory (medically) and poorly controlled
Excludes1
Not coded together with this code. The exception is when the two conditions are unrelated to each other.
- lower half migraine (G44.00)
Excludes2
Not part of this code, but both can be coded when both are documented.
- headache NOS (R51.9)
- headache syndromes (G44.-)
Use additional code
Add a second code for the following, when documented.
- code for adverse effect, if applicable, to identify drug (T36-T50 with fifth or sixth character 5)
Code also
A second code may be needed. Sequencing depends on the encounter.
- associated premenstrual tension syndrome (N94.3)
Related codes
G43.801Other migraine, not intractable, with status migrainosus ICD-10-CMG43.809Other migraine, not intractable, without status migrainosus ICD-10-CMG43.811Other migraine, intractable, with status migrainosus ICD-10-CMG43.819Other migraine, intractable, without status migrainosus ICD-10-CMG43.829Menstrual migraine, not intractable, without status migrainosus ICD-10-CMG43.831Menstrual migraine, intractable, with status migrainosus ICD-10-CMG43.839Menstrual migraine, intractable, without status migrainosus ICD-10-CMG43.901Migraine, unspecified, not intractable, with status migrainosus ICD-10-CM
Common questions
Is G43.821 a billable code?
Yes. G43.821 is a billable ICD-10-CM code in the ICD-10-CM FY2027 (effective October 1, 2026) code set.