ICD-10-CM › G00-G99 › G40-G47 › G43.40 Hemiplegic migraine, not intractable › G43.409

G43.409

Hemiplegic migraine, not intractable, without status migrainosus

ValidICD-10-CM diagnosis code.

Valid for claims with a date of service in the current code year.

Valid FY2016 onwards.

What has happened to this code

Every change the publisher made, from 2010 to now. Entries marked draft are from the pre-implementation releases: ICD-10 took effect on 1 October 2015, so nothing before FY2016 was ever valid on a claim.

  1. FY2010 Added to the draft code set draft Hemiplegic migraine, not intractable, without status migrainosus

Official coding rules

Published by CDC for FY2027. A rule attached to a category binds every code beneath it, so the rules inherited from this code's ancestors are shown with the code they come from.

Inherited from G43 Migraine

Excludes1 - never coded here

  • lower half migraine (G44.00)

Excludes2 - not included here

  • headache NOS (R51.9)
  • headache syndromes (G44.-)

Use additional code

  • code for adverse effect, if applicable, to identify drug (T36-T50 with fifth or sixth character 5)

Note

  • the following terms are to be considered equivalent to intractable: pharmacoresistant (pharmacologically resistant), treatment resistant, refractory (medically) and poorly controlled

How CDC's index refers to this code

Wording from the official alphabetic index. Much of it appears nowhere in the code description, which is why a search for the everyday phrase so often finds nothing.

Codes in the same group

CodeDescriptionStatus
G43.401 Hemiplegic migraine, not intractable, with status migrainosus Valid