F84.3

Billable

Other childhood disintegrative disorder

Mental, Behavioral and Neurodevelopmental disorders (F01-F99)

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Also Known As

Dementia infantilisDisintegrative psychosisHeller's syndromeSymbiotic psychosis

📋 Code Instructions

  • code to identify any associated neurological condition.

Excludes1

direct

Cannot be coded with F84.3

  • Asperger's syndrome (F84.5)
  • Autistic disorder (F84.0)
  • Rett's syndrome (F84.2)

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Code Information

CodeF84.3
BillableYes
ParentF84
CategoryMental, Behavioral and Neurodevelopmental disorders (F01-F99)
Excludes13 rule(s)
Excludes20 note(s)

Data Source

CMS ICD-10-CM 2026 Tabular List

Updated October 1, 2025 (FY2026)