| Recommended Mapping (based on statistical analysis) |
| Source ICD-9 | Mapping Type | Target ICD-10 |
| 9881 (Diagnosis) - Toxic effect mushrooms (Toxic effect of mushrooms eaten as food) with E8655 (Diagnosis) - Acc poison-mushrooms (Accidental poisoning from mushrooms and other fungi) | Cluster To Single | T620X1A (Diagnosis) - Toxic effect of ingested mushrooms, accidental, init (Toxic effect of ingested mushrooms, accidental (unintentional), initial encounter) |
| CMS/CDC General Equivalence Mappings |
| 9881 (Diagnosis) - Toxic effect mushrooms (Toxic effect of mushrooms eaten as food) with E8655 (Diagnosis) - Acc poison-mushrooms (Accidental poisoning from mushrooms and other fungi) | Cluster To Single | Alternative #1: T620X1A (Diagnosis) - Toxic effect of ingested mushrooms, accidental, init (Toxic effect of ingested mushrooms, accidental (unintentional), initial encounter) |