Table 3.
Code sets defined in the EBMeDS service.
| Concept type and coding system | Code sets per concept typea, n (%) | Codes per set, median (rangeb) | ||
| Diagnosis (n=790) |
|
|
||
|
|
International |
|
|
|
|
|
|
ICD-10c | 739 (93.5) | 1 (1-53) |
|
|
|
ICPC-2d | 223 (28.2) | 1 (1-26) |
|
|
|
ICD-9-CMe | 93 (11.8) | 1 (1-550) |
|
|
|
SNOMED CTf | 89 (11.3) | 2 (1-36) |
| Drugs (n=556) |
|
|
||
|
|
International |
|
|
|
|
|
|
ATCg | 481 (86.5) | 1 (1-245) |
|
|
|
SNOMED CT | 25 (4.5) | 1 (1-2) |
|
|
National |
|
|
|
|
|
|
Read codes (United Kingdom) | 17 (3.1) | 1 (1-5) |
| Investigation results (n=317) |
|
|
||
|
|
International |
|
|
|
|
|
|
LOINCh | 116 (36.6) | 1 (1-8) |
|
|
|
Nomenclature for Properties and Units | 76 (24.0) | 1 (1-9) |
|
|
National |
|
|
|
|
|
|
KL Finnish classification for laboratory investigations | 271 (85.5) | 2 (1-60) |
|
|
|
Read codes (United Kingdom) | 25 (7.9) | 1 (1-4) |
|
|
Proprietary EHRi |
|
|
|
|
|
|
Meldola Hospital measurement classification (Italy) | 54 (17.0) | 1 (1-2) |
|
|
|
SoSoeMe measurement classification (Belgium) | 67 (21.1) | 1 (1-3) |
|
|
|
Health One measurement classification (Belgium) | 63 (19.9) | 1 (1-3) |
| Procedures (n=214) |
|
|
||
|
|
International |
|
|
|
|
|
|
SNOMED CT | 8 (3.7) | 1 (1-43) |
|
|
|
ICD-9-CM | 27 (12.6) | 1 (1-16) |
|
|
National |
|
|
|
|
|
|
Current Procedural Terminology | 17 (7.9) | 7 (1-42) |
|
|
|
Nordic procedure codes | 179 (83.6) | 1 (1-468) |
|
|
Proprietary EHR |
|
|
|
|
|
|
Quantros Organization (United States) | 7 (3.3) | 1 (—j) |
| Risk factors (n=2) |
|
|
||
|
|
International |
|
|
|
|
|
|
ICD-10 | 1 (50.0) | 1 (—) |
|
|
Proprietary EHR |
|
|
|
|
|
|
Health One measurement classification (Belgium) | 1 (50.0) | 1 (—) |
| Vaccines (n=11) |
|
|
||
|
|
International |
|
|
|
|
|
|
ATC | 11 (100.0) | 1 (1-12) |
|
|
National |
|
|
|
|
|
|
ROKVALM Finnish vaccination codes | 9 (90.9) | 7.5 (1-19) |
|
|
|
ROK Finnish vaccination codes | 8 (81.8) | 1 (1-7) |
aThe proportion of code sets per total number of concepts represents the proportion of clinical concepts for which a set of codes was found that matched the clinical concept.
bMinimum to maximum.
cICD-10: International Classification of Diseases, Tenth Revision.
dICPC: International Classification of Primary Care.
eICD-9-CM: International Classification of Diseases, Ninth Revision–Clinical Modification.
fSNOMED CT: Systematized Nomenclature of Medicine—Clinical Terms.
gATC: Anatomical Therapeutic Chemical Classification.
hLOINC: Logical Observation Identifiers Names and Codes.
iEHR: electronic health record.
jIndicates that the range is defined by a single value.