| Underlying Cause of Death | ICD-10 | ICD-9 | Comparability Ratio |
|---|---|---|---|
| Certain gastrointestinal diseases* | K50-K55, K29, A04, A08, A09, A02.0 | 008, 009, 535, 555- 558 |
--- |
| Septicemia | A40-A41 |
038 |
1.19 |
| Remainder of infectious and parasitic diseases | A00-A01, A02.1-A03, A05-A07, A16-A39, A42-A49, B00-B99 | 001-007, 010-037, 039-139 |
--- |
| Meningitis | G00-G03 | 320-322 | 1.01 |
| Pneumonia & Influenza | J10-J18 |
480-487 |
0.70 |
| Congenital Malformations, Deformations & Chromosomal Abnormalities | Q00-Q99 | 740-759 | .85 |
| Newborn affected by maternal complications of pregnancy, labor and delivery | P01 | 761 | 1.04 |
| Newborn affected by complications of placenta, cord and membranes | P02 | 762 | 1.05 |
| Disorders relating to short gestation and unspecified low birthweight | P07 |
765 |
1.11
|
| Birth trauma | P10-P15 | 767 |
.044 |
| Intrauterine hypoxia and birth asphyxia | P20-P21 | 768 |
1.45
|
| Respiratory distress syndrome | P22 | 769 |
1.03 |
| Other respiratory conditions | P23-P28 |
770 |
.85 |
| Infections specific to the perinatal period | P35-P39 |
771 |
1.02
|
| Neonatal hemorrhage | P50-P52 |
772 |
1.43
|
| All other and ill-define conditions originating in the perinatal period | P29, P70-P83 |
760, 763, 764, 766, 773-779 |
--- |
| Sudden infant death syndrome | R95 | 798.0 | 1.04 |
|
Unintentional
Injury (Accidents) |
V01-X59,Y85-Y86
|
E800-E869,E880-E929 |
1.03 |
| Homicides | X85-Y09, Y87.1 | E960-E969 | 1.00 |
Note: The underlying cause of death is the condition giving rise to the chain of events leading to death. Between January 1, 1979 and December 31, 1998, the underlying causes of death were classified in accordance with the Ninth Revision of the International Classification of Diseases (ICD-9), a coding structure developed by the World Health Organization. Starting January 1, 1999, causes of death were classified using the Tenth Revision of the International Classification of Diseases (ICD-10). With each revision there are differences in classifying the underlying cause of death. Therefore, health statistics based on one revision are not directly comparable to the other revision without the use of comparability ratios. (See "Comparability of cause of death between ICD–9 and ICD–10: Preliminary estimates." National vital statistics reports; vol 49 no. 2. Hyattsville, Maryland: National Center for Health Statistics. 2001. )
*"Certain gastrointestinal diseases" was a grouping used during the eighties.
The comparability ratio
results from double-coding a large sample of the national mortality file, once
by the old revision (ICD-9) and again by the new revision (ICD-10), and expressing
the results of the comparison as a ratio of deaths for a cause of death by the
later revision divided by the number of that cause of death coded and classified
by the earlier revision. A ratio greater than 1.0 indicates that the new coding
structure will classify more deaths to that underlying cause of death.
See the National Center for Health Statistics
for more information on the comparability ratio and the classification of mortality.