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F94.0

Billable

Selective mutism

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

What This Code Means

A condition where a child is able to speak but chooses not to speak in certain social situations, such as school, despite speaking normally in other settings like home.

Coding Tips

  • Document the specific situations where the child fails to speak and confirm normal speech ability in other contexts
  • Ensure onset is in childhood and that the condition persists for at least one month

Excludes 2 — Not included here, may code separately

  • pervasive developmental disorders (F84.-)
  • schizophrenia (F20.-)
  • specific developmental disorders of speech and language (F80.-)
  • transient mutism as part of separation anxiety in young children (F93.0)

Code Hierarchy

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