Table 4 Inaccurate coding for external cause codes by external cause group
Group*DescriptionTotal1st, 2nd or 3rdcharacter incorrectIncorrect in anycharacter
V01–V99Transport accidents
    V20–V79Motor vehicle accidents14119.9 (13.6 to 27.4)24.8 (17.9 to 32.8)
    V01–V19, V80–V89Other land transport accidents8618.6 (11.0 to 28.4)30.2 (20.8 to 41.1)
    V90–V99Other transport accidents966.7 (29.9 to 92.5)66.7 (29.9 to 92.5)
W00–X59Non-transport accidents
    W00–W19Falls58029.7 (26.0 to 33.6)29.7 (26.0 to 33.6)
    W20–X59Other accidents53230.1 (26.2 to 34.2)31.0 (27.1 to 35.1)
X60–X84Intentional self-harm10913.8 (7.9 to 21.7)14.7 (8.6 to 22.7)
X85–Y09Assault8124.7 (15.8 to 35.5)24.7 (15.8 to 35.5)
Y10–Y34Event of undetermined intent3100.0 (29.2 to 100.0)100.0 (29.2 to 100.0)
Y35–Y36Legal intervention10.0 (0.0 to 97.5)0.0 (0.0 to 97.5)
Y40–Y84Medical and surgical complications19119.4 (14.0 to 25.7)30.9 (24.4 to 38.0)
Y85–Y89Sequelae1100.0 (2.5 to 100.0)100.0 (2.5 to 100.0)
Total173426.4 (24.4 to 28.6)29.0 (26.9 to 31.2)
  • Values are % (95% CI). When the estimate of the % incorrect is either 0 or 100, the 97.5% one-sided CI is presented.

  • *Y92–Y93 are presented separately in table 5.