ICD-9 Code 346.23

Variants of migraine, not elsewhere classified, with intractable migraine, so stated, with status migrainosus

Not Valid for Submission

346.23 is a legacy non-billable code used to specify a medical diagnosis of variants of migraine, not elsewhere classified, with intractable migraine, so stated, with status migrainosus. This code was replaced on September 30, 2015 by its ICD-10 equivalent.

ICD-9: 346.23
Short Description:Var mgrn NEC w ntrc mgr
Long Description:Variants of migraine, not elsewhere classified, with intractable migraine, so stated, with status migrainosus

Convert 346.23 to ICD-10

The following crosswalk between ICD-9 to ICD-10 is based based on the General Equivalence Mappings (GEMS) information:

  • G43.811 - Other migraine, intractable, with status migrainosus

Code Classification

  • Diseases of the nervous system (320–359)
    • Other disorders of the central nervous system (340-349)
      • 346 Migraine

Information for Medical Professionals

ICD-9 Footnotes

General Equivalence Map Definitions
The ICD-9 and ICD-10 GEMs are used to facilitate linking between the diagnosis codes in ICD-9-CM and the new ICD-10-CM code set. The GEMs are the raw material from which providers, health information vendors and payers can derive specific applied mappings to meet their needs.

  • Approximate Flag - The approximate flag is on, indicating that the relationship between the code in the source system and the code in the target system is an approximate equivalent.
  • No Map Flag - The no map flag indicates that a code in the source system is not linked to any code in the target system.
  • Combination Flag - The combination flag indicates that more than one code in the target system is required to satisfy the full equivalent meaning of a code in the source system.