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R40.4

Billable

Transient alteration of awareness

This code does not map to an HCC category in any model (V28, V24, ESRD, RxHCC).

What This Code Means

A brief, temporary loss of consciousness or awareness that resolves spontaneously.

Coding Tips

  • •This code is used for transient episodes; if the altered awareness is prolonged or recurrent, investigate for seizures or syncope
  • •Document the duration and any triggers or associated symptoms to help identify the underlying cause

Code Hierarchy

└R40Somnolence, stupor and coma└R40.4Transient alteration of awareness
└R40.4Transient alteration of awareness

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