ICD 9 to ICD 10 Bridge Coding Pnina

ICD 9 to ICD 10 Bridge Coding Pnina Zadka, Naama Rotem & Batja Halperin Central Bureau of Statistics Jerusalem, Israel 09/03/2021 Zadka & Rotem 1

Matrix Results Comparison Based on 1552 deaths for 1997 in Israel All deaths assigned an injury / external cause as the underlying cause of death 09/03/2021 Zadka & Rotem 2

Reservations: b Small number of deaths b Two different coders ; inter coder bias b Coding & punching mistakes 09/03/2021 Zadka & Rotem 3

Unintentional Injuries Full agreement in both revisions b Drowning b Fire / flame b Motor vehicle accidents (total) b Poisoning b Struck by b Unspecified mechanism 09/03/2021 Zadka & Rotem 4

Unintentional Injuries Unintentional Falls (ICD 9) b 25% coded as undetermined falls under ICD 10 b 25% underlying cause of death a disease b 50% Agreement between the two classifications 09/03/2021 Zadka & Rotem 5

Unintentional (cont. ) Unintentional Suffocation 40% Underlying causes a disease 60% Agreement 09/03/2021 Zadka & Rotem 6

Self inflicted injury Full agreement b Cut / pierce b Drowning b Fall b Fire / flame b MVA b Poisoning b Unspecified b Firearm 09/03/2021 Zadka & Rotem 7

Self inflicted (cont. ) Suffocation 25% Undetermined hanging 73% Agreement 09/03/2021 Zadka & Rotem 8

Assault Full agreement on Intent and mechanism 09/03/2021 Zadka & Rotem 9

Undetermined intent injury Full agreement b Cut pierce b Firearm b Suffocation 09/03/2021 Zadka & Rotem 10

Undetermined intent (cont. ) Drowning b 20% Accidental drowning Fall b 30% Accidental Fall Fire / flame b 20% 09/03/2021 Accidental fire Zadka & Rotem 11

Undetermined intent (cont. ) Poisoning b 20% Therapeutic misadventure b 20% disease Unspecified 10% Disease + therapeutic 09/03/2021 Zadka & Rotem 12

Other specified Under both classification all cases in Israel A special addition to ICD - terror action 20 deaths in 1997 09/03/2021 Zadka & Rotem 13

Summary b Mechanism remains stable b Differences in the rules for the attribution of unspecified intent for certain mechanisms 09/03/2021 Zadka & Rotem 14