Coma scale, best verbal response, none, unspecified time

This code indicates a patient's complete absence of verbal response as assessed by the Glasgow Coma Scale (GCS). It signifies the lowest possible score for the verbal component, suggesting severe neurological impairment. This finding is typically associated with significant brain injury or dysfunction.

Use this code when documentation explicitly states "no verbal response" or a GCS verbal score of 1, and the specific time of assessment is not recorded. This is common in initial assessments of unresponsive patients in emergency settings or during critical care. The physician's assessment of the GCS verbal component must be clearly documented.

• Always look for the specific GCS verbal score documented; if "none" is stated, this code is appropriate.
• Distinguish from other R40.22x codes based on the specific verbal response (e.g., incomprehensible sounds, inappropriate words).
• Ensure the documentation supports the "unspecified time" aspect; if a specific time is noted, a more precise code should be used.