TABLE 1

Diagnoses Included in the Analysis, International Classification of Diseases Codes, and Postneonatal Mortality Rates, Grouped by Composite

Cause of DeathICD-9 Codes, 1983–1999ICD-10 Codes, 1999–2012Average PNNM Rate, 1983–1985Average PNNM Rate, 2010–2012Decrease and Relative Percentage
SIDS798.0R951.340030.432570.907/32.3%
Unknown Composite0.117970.20504−0.087/173.8%
 Cause unknown or unspecified799, 799.9R990.110520.19897−0.088/180.0%
 Unattended death798.9R980.0004600.0005
 Unspecified event, undetermined intentE988.9Y340.007000.006070.001/86.7%
 Instantaneous death798.1R96.0000
 Other sudden death, cause unknown798R96000
Circumstantial Respiratory Composite0.053690.18430−0.131/343.3%
 Asphyxia, strangulation, or suffocation in bedE913, E913.0, 913.2, 913.8, 913.9W75, W810.039600.14610−0.107/368.9%
 Sleep apnea or sleep disturbance, unspecified780.5G47.3, G47.9000
 Unspecified death due to breathing799.1W840.009460.03820−0.029/403.9%
 Apnea not otherwise specified786.0R06.80.0029100.003
 Asphyxia not otherwise specified799.0R09.0, T710.0017200.002
CUID Composite1.617570.825960.792/51.1%
 SIDS + Unknown Composite + Circumstantial Respiratory CompositeSee aboveSee above1.511700.821910.690/54.4%
 Death occurring <24 h from onset of symptoms, not otherwise explained798.2R96.1000
 Sudden cardiac death or cardiac arrest, unspecified427.5I46.1, I46.90.105870.004050.102/3.8%
External Causes Composite0.005840.004060.002/69.6%
 NeglectE904.0Y06, Y06.1, Y06.2, Y06.8, Y06.90.0008200.001
 Suffocation not otherwise specified994.7W7600.00102−0.001
 Caught, crushed, or pinched in or between objectsE918W230.0007300.001
 Assault by hanging, strangulation, and suffocationE963X910.004290.003050.001/71.0%
Non-SIDS postneonatal mortality2.469911.601840.868/64.9%
 Congenital malformations, deformations, and chromosomal abnormalities740–759Q00-990.615750.280280.335/45.5%
 Disorders related to short gestation and LBW, not elsewhere classified764–766P070.009740.02320−0.013/238.1%
 AccidentsE800-E928V01-X590.222230.23060−0.008/103.8%
 Respiratory distress of the newborn769–770.6P220.068930.002270.067/3.3%
 All others1.553251.065490.488/68.6%
  • PNNM, postneonatal mortality.