ICD-11 classes
21 Symptoms, signs or clinical findings, not elsewhere...
Symptoms, signs or clinical findings of the nervous system
Symptoms or signs involving the nervous system
MA80 — Speech disturbances
MB23.D — Mutism

ICD-11 MB23.D — Mutism

A lack of verbal output that may be generalised or restricted to specific situations.

The diagnosis includes nothing.

The diagnosis excludes nothing.

It has no clarifying diagnoses.

The diagnosis is coded elsewhere:

• Speech disturbances #9034
• Speech disturbances #23892
• Symptoms or signs involving appearance or behaviour #23963