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Table 1 Ten most frequent ICD-10 top level diagnoses categorized by medical problem. Presented as patient category (number of separate top-level diagnoses) or n (%)

From: Standardised data collection in prehospital critical care: a comparison of medical problem categories and discharge diagnoses

Diagnoses N % Diagnoses N %
Cardiac arrest (238 diagnosis blocks in total) Trauma (368)
Cardiac arrest 1904 44.1 Intracranial injury 2455 24.6
Myocardial infarction 583 13.5 Fracture of rib(s), sternum and thoracic spine 655 6.6
Ill-defined and unknown cause of mortality 324 7.5 Fracture of skull and facial bones 480 4.8
Other cardiac arrhythmias 172 4.0 Fracture of lumbar spine and pelvis 461 4.6
Nontraumatic subarachnoid hemorrhage 98 2.3 Injury of other and unspecified intrathoracic organs 380 3.8
Chronic ischemic heart disease 95 2.2 Open wound of head 375 3.8
Other disorders of brain 53 1.2 Fracture of lower leg, including ankle 284 2.8
Pulmonary embolism 46 1.1 Fracture of femur 270 2.7
Heart failure 39 0.9 Fracture of neck 247 2.5
Pneumonia, unspecified organism 37 0.9 Injury of intra-abdominal organs 224 2.2
Other diagnoses 963 22.3 Other diagnoses 4144 41.5
Breathing difficulties (273) Chest pain (123)
Heart failure 403 14.5 Myocardial infarction 749 42.2
Pneumonia, organism unspecified 347 12.5 Pain in throat and chest 243 13.7
Other chronic obstructive pulmonary disease 212 7.6 Angina pectoris 173 9.7
Abnormalities of breathing 156 5.6 Chronic ischemic heart disease 93 5.2
Acute myocardial infarction 133 4.8 Atrial fibrillation and flutter 75 4.2
Other respiratory disorders 92 3.3 Paroxysmal tachycardia 46 2.6
Bacterial pneumonia, not elsewhere classified 75 2.7 Heart failure 40 2.3
Adverse effects, not elsewhere classified 65 2.3 Syncope and collapse 23 1.3
Asthma 56 2.0 Dissection of aorta 20 1.1
Foreign body in respiratory tract 54 1.9 Abdominal and pelvic pain 18 1.0
Other diagnoses 1188 42.7 Other diagnoses 295 16.6
Stroke (191) Other neurological (332)
Cerebral infarction 724 22.0 Convulsions, not elsewhere classified 994 17.9
Nontraumatic intracerebral hemorrhage 538 16.3 Epilepsy and recurrent seizures 994 17.9
Nontraumatic subarachnoid hemorrhage 492 14.9 Status epilepticus 363 6.5
Epilepsy and recurrent seizures 153 4.6 Nontraumatic intracerebral hemorrhage 289 5.2
Intracranial injury 143 4.3 Mental and behavioural disorders due to use of alcohol 245 4.4
Convulsions, not elsewhere classified 142 4.3 Personality disorder 237 4.3
Transient cerebral ischemic attacks and related syndromes 109 3.3 Syncope and collapse 210 3.8
Somnolence, stupor and coma 77 2.3 Cerebral infarction 204 3.7
Syncope and collapse 71 2.2 Somnolence, stupor and coma 181 3.3
Status epilepticus 53 1.6 Intracranial injury 175 3.2
Other diagnoses 796 31.8 Other diagnoses 1663 29.9
Psychiatric including intoxication (220) Gynecologic or obstetric (73)
Poisoning or adverse effect of medicament 1348 37.8 Full-term uncomplicated delivery 368 47.4
Mental and behav. disorders due to alcohol 556 15.6 Maternal postpartum care and examination 46 5.9
Depression 137 3.8 Supervision of normal pregnancy 45 5.8
Poisoning due to narcotics or hallucinogens 122 3.4 False labor 43 5.5
Toxic effect of alcohol 99 2.8 Single delivery by caesarean section 34 4.4
Somnolence, stupor and coma 81 2.3 Abdominal and pelvic pain 22 2.8
Recurrent major depression 53 1.5 Obstetrical hemorrhage 17 2.2
Opioid related disorders 49 1.4 Single delivery by forceps and vacuum extractor 14 1.8
Other psychoactive substance related disorders 49 1.4 Placenta previa 14 1.8
Convulsions, not elsewhere classified 46 1.3 Premature rupture of membranes 13 1.7
Other diagnoses 1030 28.9 Other diagnoses 160 20.6
Infection (146) Oher (403)
Other sepsis 84 14.6 Syncope and collapse 205 5.3
Pneumonia, unspecified organism 71 12.3 Paroxysmal tachycardia 162 4.2
Convulsions, not elsewhere classified 50 8.7 Dissection of aorta 131 3.4
Bacterial infection of unspecified site 35 6.1 Hypothermia 127 3.3
Bacterial pneumonia, not elsewhere classified 15 2.6 Other diseases of digestive system 124 3.2
Infectious gastroenteritis and colitis, unspecified 14 2.4 Poisoning or adverse effect of medicament 122 3.2
Erysipelas 11 1.9 Mental and behav. disorders due to alcohol 118 3.1
Streptococcal sepsis 10 1.7 Adverse effects, not elsewhere classified 115 3.0
Acute tubulo-interstitial nephritis 9 1.6 Atrial fibrillation and flutter 92 2.4
Abdominal and pelvic pain 9 1.6 Abdominal and pelvic pain 90 2.3
Other diagnoses 268 46.5 Other diagnoses 2577 66.7