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Q18.5

Billable

Microstomia

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

What This Code Means

A birth defect characterized by an abnormally small mouth opening, which may affect feeding and speech development.

Coding Tips

  • •Note the degree of mouth opening restriction
  • •Document any associated cleft palate or other facial anomalies

Code Hierarchy

└Q18Other congenital malformations of face and neck└Q18.5Microstomia
└Q18.5Microstomia

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