| Source ICD-10 | Mapping Type | Target ICD-9 |
| Recommended Mapping (based on statistical analysis) |
| T570X1A (Diagnosis) - Toxic effect of arsenic and its compounds, accidental, init (Toxic effect of arsenic and its compounds, accidental (unintentional), initial encounter) | Single To Single | 9851 (Diagnosis) - Toxic effect arsenic (Toxic effect of arsenic and its compounds) |
| CMS/CDC General Equivalence Mappings |
| T570X1A (Diagnosis) - Toxic effect of arsenic and its compounds, accidental, init (Toxic effect of arsenic and its compounds, accidental (unintentional), initial encounter) | Single To Single | Alternative #1: 9851 (Diagnosis) - Toxic effect arsenic (Toxic effect of arsenic and its compounds) |
Single To Cluster | Cluster #1: 9851 (Diagnosis) - Toxic effect arsenic (Toxic effect of arsenic and its compounds)with E8663 (Diagnosis) - Acc poisoning-arsenic (Accidental poisoning by arsenic and its compounds and fumes) |