NIHSS score 25

This code indicates a specific severity level of neurological impairment following a stroke or other acute neurological event, as assessed by the National Institutes of Health Stroke Scale (NIHSS). An NIHSS score of 25 signifies severe neurological deficit, often associated with significant functional impairment.

Use this code when the patient's medical record explicitly documents an NIHSS score of 25. This is typically applied in the acute phase of stroke management or during follow-up assessments where the NIHSS is utilized to quantify neurological status. Documentation must clearly state the NIHSS score.

• Ensure the documentation explicitly states "NIHSS score 25" to support this specific code.
• Do not use this code if the NIHSS score is not precisely 25; there are unique codes for each score range.
• This code is typically secondary to the primary diagnosis of the underlying neurological condition (e.g., acute cerebral infarction).