SUID by Cause of Death, 2024

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Purpose

Sudden unexpected infant deaths (SUID) include sudden infant death syndrome (SIDS), unknown cause, and accidental suffocation and strangulation in bed (ASSB). Understand the breakdown of SUID by cause of death for the year 2024.

SUID by cause of death, 2024

SOURCE: CDC/NCHS, National Vital Statistics System, Mortality Files. Rates calculated via CDC WONDER. Codes for cause of death were defined according to the International Statistical Classification of Diseases and Related Health Problems, Tenth Revision (ICD-10). We defined cause of death by using the following underlying cause of death ICD-10 codes: ASSB (W75), SIDS (R95), Unknown cause (R99).

The chart above shows the breakdown of sudden unexpected infant deaths (SUID) by cause of death. In 2024, 40% were SIDS, 32% were unknown cause, and 28% were ASSB.

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Content Source
National Center for Chronic Disease Prevention and Health Promotion (NCCDPHP); Division of Reproductive Health
About This Page
Published: September 16, 2024
Updated: August 13, 2026

This page was last updated on this date. Updates may include minor edits, image changes, or other modifications to page content.

Reviewed: August 13, 2026

The information on this page was last reviewed by subject matter experts to ensure accuracy.