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ICD 9 to ICD 10 Bridge Coding

Explore the findings of Zadka & Rotem on injury-related deaths in Israel in 1997, analyzing coding discrepancies, variations in unintentional injuries classifications, and agreement on intent and mechanism of injuries. Gain insights into the challenges and nuances of transitioning from ICD-9 to ICD-10 coding systems.

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ICD 9 to ICD 10 Bridge Coding

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

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

  3. Reservations: • Small number of deaths • Two different coders ; inter coder bias • Coding & punching mistakes Zadka & Rotem

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

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

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

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

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

  9. Assault Full agreement on Intent and mechanism Zadka & Rotem

  10. Undetermined intent injury Full agreement • Cut pierce • Firearm • Suffocation Zadka & Rotem

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

  12. Undetermined intent (cont.) Poisoning • 20% Therapeutic misadventure • 20% disease Unspecified 10% Disease + therapeutic Zadka & Rotem

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

  14. Summary • Mechanism remains stable • Differences in the rules for the attribution of unspecified intent for certain mechanisms Zadka & Rotem

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