ICD-10-CM 2027
ICD-10 code for elective mutism
From the official ICD-10-CM alphabetic index entry “Mutism › elective (adjustment reaction) (childhood)”. Page updated September 29, 2026.
About coding elective mutism
The ICD-10-CM code for elective mutism is F94.0 (Selective mutism).
Within F94 (disorders of social functioning with onset specific to childhood and adolescence), F94.0 is specifically for selective mutism. Related codes cover reactive attachment disorder of childhood (F94.1), Disinhibited attachment disorder of childhood (F94.2), other childhood disorders of social functioning (F94.8) and childhood disorder of social functioning, unspecified (F94.9).
The conditions in its Excludes2 note aren't part of F94.0, but may be coded alongside it if the patient has both: pervasive developmental disorders (F84.-), schizophrenia (F20.-), specific developmental disorders of speech and language (F80.-) and transient mutism as part of separation anxiety in young children (F93.0).
It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.
Common questions about elective mutism ICD-10 codes
What is the ICD-10 code for elective mutism?
- F94.0 — Selective mutism.
Is F94.0 billable?
- Yes. F94.0 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can F94.0 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict F94.0 as a principal diagnosis.
Is F94.0 a CC or MCC?
- No. F94.0 is neither a CC nor an MCC under MS-DRG v44.0.