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G90.01

Billable

Carotid sinus syncope

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

What This Code Means

Carotid sinus syncope is a sudden fainting episode caused by pressure on the carotid sinus (a sensory area in the neck artery) that triggers an abnormal reflex, causing a sudden drop in heart rate and blood pressure. This condition typically occurs in older adults when the neck is turned or compressed.

Coding Tips

  • •Ensure documentation specifies carotid sinus syncope rather than other types of syncope; query the provider if the syncope type is unclear or if only 'syncope' is documented
  • •This code is often associated with falls or injuries; review the medical record for any secondary diagnoses related to falls or trauma that should be coded separately

Code Hierarchy

└G90Disorders of autonomic nervous system└G90.0Idiopathic peripheral autonomic neuropathy└G90.01Carotid sinus syncope
└G90.01Carotid sinus syncope

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