Table 5.
The 25 most common ICD-10 diagnoses at the four-digit level in the Danish National Patient Registry, according to patient contact type, 1994–2012a
| Inpatient contact
|
Outpatient contact
|
Emergency department contact
|
|||
|---|---|---|---|---|---|
| Diagnosis (ICD-10 code)
|
n (%)
|
Diagnosis (ICD-10 code)
|
n (%)
|
Diagnosis (ICD-10 code)
|
n (%)
|
| Any | 4,610,123 (100) | Any | 4,995,365 (100) | Any | 4,792,298 (100) |
| 1. Spontaneous vertex delivery (O800) | 466,723 (10.1) | Senile cataract, unspecified (H259) | 287,008 (5.7) | Fracture of lower end of radius (S934) | 590,608 (12.3) |
| 2. Pneumonia, unspecified (J189) | 260,815 (5.7) | Presbycusis (H911) | 193,200 (3.9) | Open wound of finger(s) without damage to nail (S610) | 554,305 (11.6) |
| 3. Abdominal pain, unspecified (R108) | 159,390 (3.5) | Unilateral or unspecified inguinal hernia (K409) | 178,811 (3.6) | Contusion of finger(s) without damage to nail (S600) | 301,454 (6.3) |
| 4. Angina pectoris, unspecified (I209) | 147,605 (3.2) | Meniscus derangement due to tear or injury (M232) | 157,750 (3.2) | Contusion of wrist and hand, exclusion fingers (S602) | 263,753 (5.5) |
| 5. Acute abdomen (R100) | 146,264 (3.2) | Essential hypertension (I109) | 132,992 (2.7) | Fracture of lower end of radius (S525) | 250,339 (5.2) |
| 6. Atrial fibrillation and flutter (I489) | 142,849 (3.1) | Hearing loss, unspecified (H919) | 126,037 (2.5) | Contusion of knee (S800) | 243,863 (5.1) |
| 7. Concussion (S060) | 129,704 (2.8) | Fracture of lower end of radius (S525) | 123,682 (2.5) | Open wound of head, part unspecified (S019) | 242,506 (5.1) |
| 8. Syncope and collapse (R559) | 114,942 (2.5) | Complete or unspecified medical abortion (O049) | 121,821 (2.4) | Open wound of scalp (S010) | 241,943 (5.0) |
| 9. Stroke, unspecified (I649) | 112,366 (2.4) | Angina pectoris, unspecified (I209) | 120,765 (2.4) | Contusion of other and unspecified parts of foot (S903) | 204,344 (4.3) |
| 10. Gastroenteritis of unspecified origin (A099) | 107,339 (2.3) | Tear of meniscus (S832) | 117,493 (2.4) | Sprain and strain of finger(s) (S636) | 199,784 (4.2) |
| 11. Unilateral or unspecified inguinal hernia (K409) | 98,996 (2.1) | Abdominal pain, unspecified (R108) | 117,381 (2.3) | Fracture of other finger (S626) | 171,706 (3.6) |
| 12. Delivery by emergency cesarean section (O821) | 97,505 (2.1) | Varicose veins of lower extremities (I839) | 116,957 (2.3) | Contusion of shoulder and upper arm (S400) | 169,022 (3.5) |
| 13. Volume depletion (E869) | 95,031 (2.1) | Disc disorders with radiculopathy (M511) | 113,217 (2.3) | Sprain and strain of unspecified parts of knee (S836) | 163,976 (3.4) |
| 14. Fracture of neck of femur (S720) | 94,372 (2.0) | Asthma, unspecified (J459) | 106,652 (2.1) | Concussion (S060) | 162,564 (3.4) |
| 15. Calculus of gallbladder, no cholecystitis (K802) | 87,351 (1.9) | Hyperplasia of prostate (N409) | 106,459 (2.1) | Injury of conjunctiva and corneal abrasion (S050) | 155,675 (3.2) |
| 16. Spontaneous breech delivery (O802) | 86,451 (1.9) | Atrial fibrillation and flutter (I489) | 105,710 (2.1) | Open wound of eyelid and periocular area (S011) | 150,449 (3.1) |
| 17. Acute myocardial infarction, unspecified (I219) | 84,800 (1.8) | Unspecified hematuria (R319) | 105,548 (2.1) | Contusion of thorax (S202) | 149,719 (3.1) |
| 18. Cerebral infarction, unspecified (I639) | 84,001 (1.8) | Internal derangement of knee, unspecified (M239) | 104,986 (2.1) | Contusion of elbow (S500) | 147,950 (3.1) |
| 19. Complete or unspecified medical abortion (O049) | 80,284 (1.7) | Carpal tunnel syndrome (G560) | 96,247 (1.9) | Contusion of toe(s) without damage to nail (S901) | 133,673 (2.8) |
| 20. Heart failure, unspecified (I509) | 79,877 (1.7) | Calculus of gallbladder, no cholecystitis (K802) | 94,599 (1.9) | Sprain and strain of wrist (S635) | 133,174 (2.8) |
| 21. Acute appendicitis, unspecified (K359) | 74,769 (1.6) | Impingement syndrome of shoulder (M754) | 91,306 (1.8) | Superficial injury of head, part unspecified (S009) | 117,495 (2.5) |
| 22. Constipation (K590) | 73,162 (1.6) | COPD, unspecified (J449) | 89,555 (1.8) | Superficial injury of scalp (S000) | 117,118 (2.4) |
| 23. Acute cystitis (N300) | 72,768 (1.6) | Other primary gonarthrosis (M171) | 89,528 (1.8) | Open wound of other parts of wrist and hand (S618) | 116,600 (2.4) |
| 24. Vacuum extractor delivery (O814) | 69,842 (1.5) | Pain in limb (M796) | 86,225 (1.7) | Foreign body in cornea (T150) | 115,715 (2.4) |
| 25. Essential hypertension (I109) | 68,799 (1.5) | Low back pain (M545) | 85,920 (1.7) | Sprain and strain of cervical spine (S134) | 114,419 (2.4) |
Notes:
a
Both primary and secondary diagnoses are included. Factors influencing health status and contact with health services (Z-codes) are not included.
Abbreviation: ICD, International Classification of Diseases; COPD, chronic obstructive pulmonary disease.