| Source ICD-10 | Mapping Type | Target ICD-9 |
| Recommended Mapping (based on statistical analysis) |
| T5391XD (Diagnosis) - Toxic eff of unsp halgn deriv of aromat hydrocrb, acc, subs (Toxic effect of unspecified halogen derivatives of aliphatic and aromatic hydrocarbons, accidental (unintentional), subsequent encounter) | Single To Single | V5889 (Diagnosis) - Other specfied aftercare (Other specified aftercare) |
| CMS/CDC General Equivalence Mappings |
| T5391XD (Diagnosis) - Toxic eff of unsp halgn deriv of aromat hydrocrb, acc, subs (Toxic effect of unspecified halogen derivatives of aliphatic and aromatic hydrocarbons, accidental (unintentional), subsequent encounter) | Single To Single | Alternative #1: V5889 (Diagnosis) - Other specfied aftercare (Other specified aftercare) |