| Source ICD-10 | Mapping Type | Target ICD-9 |
| Recommended Mapping (based on statistical analysis) |
| T8501XA (Diagnosis) - Breakdown of ventricular intracranial shunt, init (Breakdown (mechanical) of ventricular intracranial (communicating) shunt, initial encounter) | Single To Single | 9962 (Diagnosis) - Malfun neuro device/graf (Mechanical complication of nervous system device, implant, and graft) |
| CMS/CDC General Equivalence Mappings |
| T8501XA (Diagnosis) - Breakdown of ventricular intracranial shunt, init (Breakdown (mechanical) of ventricular intracranial (communicating) shunt, initial encounter) | Single To Single | Alternative #1: 9962 (Diagnosis) - Malfun neuro device/graf (Mechanical complication of nervous system device, implant, and graft) |