| Source ICD-10 | Mapping Type | Target ICD-9 |
| Recommended Mapping (based on statistical analysis) |
| S56511A (Diagnosis) - Strain of extn musc/fasc/tend at forarm lv, right arm, init (Strain of other extensor muscle, fascia and tendon at forearm level, right arm, initial encounter) | Single To Single | 8419 (Diagnosis) - Sprain elbow/forearm NOS (Sprains and strains of unspecified site of elbow and forearm) |
| CMS/CDC General Equivalence Mappings |
| S56511A (Diagnosis) - Strain of extn musc/fasc/tend at forarm lv, right arm, init (Strain of other extensor muscle, fascia and tendon at forearm level, right arm, initial encounter) | Single To Single | Alternative #1: 8419 (Diagnosis) - Sprain elbow/forearm NOS (Sprains and strains of unspecified site of elbow and forearm) |