| Source ICD-10 | Mapping Type | Target ICD-9 |
| Recommended Mapping (based on statistical analysis) |
| T6593XA (Diagnosis) - Toxic effect of unspecified substance, assault, init encntr (Toxic effect of unspecified substance, assault, initial encounter) | Single To Single | 9899 (Diagnosis) - Tox eff nonmed subst NOS (Toxic effect of unspecified substance, chiefly nonmedicinal as to source) |
| CMS/CDC General Equivalence Mappings |
| T6593XA (Diagnosis) - Toxic effect of unspecified substance, assault, init encntr (Toxic effect of unspecified substance, assault, initial encounter) | Single To Single | Alternative #1: 9899 (Diagnosis) - Tox eff nonmed subst NOS (Toxic effect of unspecified substance, chiefly nonmedicinal as to source) |
Single To Cluster | Cluster #1: 9899 (Diagnosis) - Tox eff nonmed subst NOS (Toxic effect of unspecified substance, chiefly nonmedicinal as to source)with E9629 (Diagnosis) - Assault-poisoning NOS (Assault by unspecified poisoning) |