| Source ICD-10 | Mapping Type | Target ICD-9 |
| Recommended Mapping (based on statistical analysis) |
| A515 (Diagnosis) - Early syphilis, latent | Single To Single | 0920 (Diagnosis) - Early syph latent relaps (Early syphilis, latent, serological relapse after treatment) |
| CMS/CDC General Equivalence Mappings |
| A515 (Diagnosis) - Early syphilis, latent | Single To Single | Alternative #1: 0920 (Diagnosis) - Early syph latent relaps (Early syphilis, latent, serological relapse after treatment) |
Single To Single | Alternative #2: 0929 (Diagnosis) - Early syphil latent NOS (Early syphilis, latent, unspecified) |