R29.7National Institutes of Health Stroke Scale (NIHSS) score

R29.7 is the ICD-10-CM diagnosis code for National Institutes of Health Stroke Scale (NIHSS) score. It belongs to category R29 (other symptoms and signs involving the nervous and musculoskeletal systems), block R25-R29 (symptoms and signs involving the nervous and musculoskeletal systems) and chapter 18 (symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified). It is a header code, so it can't be reported by itself; one of its 5 subcodes must be used instead.

Within R29 (other symptoms and signs involving the nervous and musculoskeletal systems), R29.7 is specifically for National Institutes of Health Stroke Scale (NIHSS) score. Related codes cover tetany (R29.0), Meningismus (R29.1), abnormal reflex (R29.2), abnormal posture (R29.3), Clicking hip (R29.4), transient paralysis (R29.5), repeated falls (R29.6), other symptoms and signs involving the nervous and musculoskeletal systems (R29.8) and 1 more.

To report this condition, pick the subcode that matches the documentation: R29.70 (0-9), R29.71 (10-19), R29.72 (20-29), R29.73 (30-39) and R29.74 (40-42).

Code first: the type of cerebral infarction (I60.-, I61.-, I62.-, I63.-).

It was added in FY2017, effective October 1, 2016.