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G43Migraine

ICD-10-CM category (non-billable header) code — part of Episodic and paroxysmal disorders (G40-G47)

Code Details

BillableNo — use a more specific child code
ChapterChapter 6: Diseases of the nervous system (G00-G99)
SectionEpisodic and paroxysmal disorders (G40-G47)

Coding Notes

Excludes1 (never code both together)

  • lower half migraine (G44.00)

Excludes2 (not part of this condition — may code both)

  • 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

Subcategories (13)

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