F84.3 Other childhood disintegrative disorder

BillableNo payment HCCChapter 5

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Instructional notes

Chapter 5

Excludes2Not included here: the patient may have both; report both when both are present.

symptoms, signs and abnormal clinical laboratory findings, not elsewhere classified (R00-R99)

Includes

disorders of psychological development

F84

Code also

any associated medical condition and intellectual disabilities

This code

Excludes1Not coded here: never report with this code, except when the two conditions are unrelated.

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

Use additional codeAdd a second code for the full picture.

code to identify any associated neurological condition.

Inclusion terms

Dementia infantilis
Disintegrative psychosis
Heller's syndrome
Symbiotic psychosis

Chapter 5: Mental, Behavioral and Neurodevelopmental disorders · F80-F89 Pervasive and specific developmental disorders (F80-F89)

Source: ICD-10-CM FY 2027 code descriptions and tabular list (CMS and CDC National Center for Health Statistics), effective 2026-10-01 through 2027-09-30 · CMS ICD-10 files. HCC mapping: CMS-HCC V28, payment year 2027. As of 2026-11-04.

Coverage and payment depend on the claim details; confirm with the Medicare Administrative Contractor.