Table II.
Systematic classification of congenital anomalies (ICD-10)16
| System (ICD-10 code) | n (%)* | Prevalence per 10,000 live births (95% CI) |
|---|---|---|
| Nervous system (Q00-Q07) | 189 (8.5) | 21.8 (19-25) |
| Eye, ear, face and neck (Q10-Q18) | 83 (3.7) | 9.6 (8-12) |
| Circulatory system (Q20-Q28) | 621 (28.0) | 71.5 (65-77) |
| Respiratory system (Q30-Q34) | 200 (9.0) | 23.0 (20-26) |
| Cleft lip and palate (Q35-Q37) | 37 (1.7) | 4.3 (3-6) |
| Digestive system (Q38-Q45) | 144 (6.5) | 16.6 (14-19) |
| Genital organs (Q50-Q56) | 80 (3.6) | 9.2 (7-11) |
| Urinary system (Q60-Q64) | 316 (14.3) | 36.9 (33-41) |
| Musculoskeletal system (Q65-Q79) | 412 (18.6) | 47.4 (43-52) |
| Others (Q80-Q89) | 24 (1.1) | 2.8 (2-4) |
| Not elsewhere classifies (Q90-Q99) | 109 (4.9) | 12.6 (10-15) |
*Denominator is total number of congenital anomalies, i.e., 2215. ICD-10, International Classification of Diseases, tenth revision; CI, Confidence interval