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Ill-Defined Deaths in Slovenia: Implications for Mortality Data Quality and Burden of Disease Studies Cover

Ill-Defined Deaths in Slovenia: Implications for Mortality Data Quality and Burden of Disease Studies

Open Access
|Sep 2026

Figures & Tables

Table 1:

Mapping of ICD-10 codes to IDD categories used in the analysis.

IDDs groupICD codes
Heart failure, left-sided or unspecifiedI50, I50.0–I50.9, J81
Unspecified type of strokeI64, I67, I67.8–I68, I68.8–I69, I69.4–I69.8
Unspecified lower respiratory infectionsJ15, J15.9, J17–J19.6, J22-J22.9, P23, P23.5–P23.9
All unspecified cancersC1, C2, C3, C4, C5, C6, C7, C14-C14.9, C22, C22.9, C26, C35–C36, C39–C39.9, C42, C55–C55.9, C57, C57.9, C59, C68, C68.9, C75, C75.9, C76, C76–C76.4, C76.7-C77, C77-C77.9, C78-C79.1, C79, C79.2, C80.9, C87, C97, D00, D01, D01.4–D01.9, D02, D02.4–D02.9, D4, D07, D07.3, D08-D09, D09.1, D09.7, D09.9, D10, D10.9, D13, D13.9, D14, D14.4, D17–D21.9, D28, D28.9, D30, D30.9, D36–D36.0, D36.9, D37–D37.0, D37.6–D37.9, D38, D38.6, D39–D39.0, D39.7, D39.9, D41, D41.9, D44, D44.9, D48, D48.7–D49, D49–D49.0, D49.1, D49.7, D49.8–D49.9, D54, E34–E34.0, N84, N84.2–N84.8
Unspecified cardiomyopathyI42–I42.0, I42.9
Shock, coma, asphyxia or convulsionI46–I46.9, I95–I95.1, I95.8–I95.9, R03, R03.1, R09–R09.0, R09.2, R09.8, R40-R40.4, R55, R56, R56.1-R57.9
Central nervous system (CNS) intermediate causesG91–G91.2, G91.4–G93, G93.1–G93.2, G93.4–G93.6, G94-G94.8
Poisonings by multiple or unspecified drugs, UDIF19–F19.9, X40–X44.9, X46–X46.9, X49–X49.9, X55–X55
Poisonings by narcotics and psychodysleptics, UDIY12–Y12.9
Ill-defined and unknown cause of mortalityR99
Other IDDsAll remaining IDDs based on the GBD list not explicitly listed above (8)
Table 2:

Proportion of IDDs by sex and age group, Slovenia, pooled 2010–2021.

Category% of IDDs
Sex
Males17.0
Females26.5
Age groups
< 2010.1
20–2918.9
30–3918.3
40–4911.4
50–599.4
60–6910.6
70–7915.2
80–8926.3
90+40.0
Figure 1:

Proportion of IDDs by regions and population size, Slovenia, 2010–2021.

Figure 2:

Most common causes of ill-defined deaths (as % of all ill-defined deaths) in the total population, Slovenia, 2010–2021. Sensitivity analysis indicated no change in the ranking of IDDs when the unmodified GBD IDDs definition was applied.

Figure 3:

Percentages of most common ill-defined deaths (IDDs) by sex, Slovenia, 2010–2021.

Figure 4:

Percentage distribution of the five most frequent IDD categories by age group, Slovenia, 2010–2021.

Figure 5:

Percentage distribution of the most frequent IDD categories by region, Slovenia, 2010–2021.

DOI: https://doi.org/10.2478/sjph-2026-0020 | Journal eISSN: 1854-2476 | Journal ISSN: 0351-0026
Language: English, Polish, Slovenian
Page range: 165 - 174
Submitted on: Mar 11, 2026
Accepted on: Jun 19, 2026
Published on: Sep 1, 2026
Published by: National Institute of Public Health, Slovenia
In partnership with: Paradigm Publishing Services

© 2026 Tina Lesnik, Ivan Eržen, Lijana Zaletel Kragelj, Periklis Charalampous, Elena von der Lippe, Annelene Wengler, Brecht Devleesschauwer, published by National Institute of Public Health, Slovenia
This work is licensed under the Creative Commons Attribution 4.0 License.