R29.74Non-Billable (Header)NIHSS score 40-42Child CodesR29.740NIHSS score 40R29.741NIHSS score 41R29.742NIHSS score 42Code Hierarchy└R29Other symptoms and signs involving the nervous and musculoskeletal systems└R29.7National Institutes of Health Stroke Scale (NIHSS) score└R29.74NIHSS score 40-42└R29.74NIHSS score 40-42