| Source ICD-10 | Mapping Type | Target ICD-9 |
| Recommended Mapping (based on statistical analysis) |
| S91042A (Diagnosis) - Puncture wound with foreign body, left ankle, init encntr (Puncture wound with foreign body, left ankle, initial encounter) | Single To Single | 8911 (Diagnosis) - Open wnd knee/leg-compl (Open wound of knee, leg [except thigh], and ankle, complicated) |
| CMS/CDC General Equivalence Mappings |
| S91042A (Diagnosis) - Puncture wound with foreign body, left ankle, init encntr (Puncture wound with foreign body, left ankle, initial encounter) | Single To Single | Alternative #1: 8911 (Diagnosis) - Open wnd knee/leg-compl (Open wound of knee, leg [except thigh], and ankle, complicated) |