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UpcomingOct 1, 2026 – Sep 30, 2027

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Chapters Disease index External causes Drugs and chemicals Neoplasms Official sources

ICD-10-CM · FY2027 / Chapters 6 / Episodic and paroxysmal disorders (G40-G47)

Episodic and paroxysmal disorders (G40-G47)

G40-G47 · 6 Entries

More specific codes (6)

G40Epilepsy and recurrent seizuresCategory · further specificity required→G43MigraineCategory · further specificity required→G44Other headache syndromesCategory · further specificity required→G45Transient cerebral ischemic attacks and related syndromesCategory · further specificity required→G46Vascular syndromes of brain in cerebrovascular diseasesCategory · further specificity required→G47Sleep disordersCategory · further specificity required→

ICD-10-CM · CDC/NCHS · English

Official ICD-10-CM titles and instructions are preserved in English. Interface translations are provided by ICD Code Hub, not CDC or WHO.

CDC / NCHS · Oct 1, 2026 – Sep 30, 2027