ICD-10-CM > R00-R99 > R25-R29 > R29 > R29.7 > R29.73 R29.73 NIHSS score 30-39 Non-Billable/Non-Specific Codes R29.730NIHSS score 30R29.731NIHSS score 31R29.732NIHSS score 32R29.733NIHSS score 33R29.734NIHSS score 34R29.735NIHSS score 35R29.736NIHSS score 36R29.737NIHSS score 37R29.738NIHSS score 38R29.739NIHSS score 39