Table 5 Inaccurate coding for place of occurrence (Y92) and activity codes (Y93)
LevelPlace of occurrenceActivity
Total% Incorrect (95% CI)Total% Incorrect (95% CI)
Correct135077.5 (75.5 to 79.5)109770.9 (68.5 to 73.1)
4th character incorrect39022.4 (20.5 to 24.4)44628.8 (26.6 to 31.1)
Correct to 4th character, 5th character incorrect10.1 (0.0 to 0.3)50.3 (0.1 to 0.8)
Total17411548