Table 3 Inaccurate coding for principal diagnoses by nature of injury
Nature of injuryTotal1st, 2nd or 3rdcharacter incorrectIncorrect in anycharacter
Fracture6054.3 (2.8 to 6.2)17.9 (14.9 to 21.1)
Dislocation4330.2 (17.2 to 46.1)39.5 (25.0 to 55.6)
Internal organ injury10918.4 (11.6 to 26.9)35.8 (26.8 to 45.5)
Open wound20211.9 (7.8 to 17.2)27.7 (21.7 to 34.4)
Amputation3417.7 (6.8 to 34.5)23.5 (10.7 to 41.2)
Blood vessel616.7 (0.4 to 64.1)16.7 (0.4 to 64.1)
Superficial and contusion8629.1 (19.8 to 39.9)34.9 (24.9 to 45.9)
Crushing1100.0 (2.5 to 100.0)*100.0 (2.5 to 100.0)*
Burn345.9 (0.7 to 19.7)20.6 (8.7 to 37.9)
Effects of foreign bodies entering orifice2317.4 (5.0 to 38.8)34.8 (16.4 to 57.3)
Other effects of external causes825.0 (3.2 to 65.1)25.0 (3.2 to 65.1)
Poisoning1289.4 (4.9 to 15.8)13.3 (7.9 to 20.4)
Toxic effects2334.8 (16.4 to 57.3)39.1 (19.7 to 61.5)
Multiple injuries250.0 (1.3 to 98.7)100.0 (15.8 to 100.0)*
Other specified injury16823.2 (17.1 to 30.3)31.0 (24.1 to 38.5)
Unspecified injury7041.4 (29.8 to 53.8)42.9 (31.1 to 55.3)
Not applicable20517.1 (12.2 to 22.9)33.2 (26.8 to 40.1)
Total174714.2 (12.6 to 15.9)26.0 (24.0 to 28.2)
  • Values are % (95% CI).

  • *Because the estimate is 100%, the 97.5% one-sided CI is presented.