Skip to content
HCC Buddy home

G90.2

Billable

Horner's syndrome

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

What This Code Means

A condition affecting nerves in the face and neck that causes drooping eyelid, decreased sweating, and pupil changes on one side of the face.

Coding Tips

  • •Specify laterality (right vs. left) when documented in the medical record
  • •May be associated with other conditions; code any underlying cause if identified

Code Hierarchy

└G90Disorders of autonomic nervous system└G90.2Horner's syndrome
└G90.2Horner's syndrome

Open G90.2 in the Interactive Encoder

See full code details, AI coding tips, HCC mappings, and related codes in our interactive encoder. Start your 14-day Pro trial — no credit card required.

Open in EncoderStart 14-Day Pro Trial