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G51.4

Billable

Facial myokymia

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

What This Code Means

Involuntary rippling or undulating muscle contractions in the face that appear as waves of movement under the skin, distinct from spasms.

Coding Tips

  • •Myokymia presents as continuous, fine, undulating contractions rather than the rhythmic spasms of hemifacial spasm
  • •Document whether myokymia is associated with other conditions such as multiple sclerosis or brainstem lesions

Code Hierarchy

└G51Facial nerve disorders└G51.4Facial myokymia
└G51.4Facial myokymia

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