DxCodebookFY2027 · Oct 1, 2026 – Sep 30, 2027

Category · FY2027

F84 Pervasive developmental disorders

  • Header · not billable

F84 is not billable. The category heads 6 billable codes in FY2027: the 6 codes directly below it.

Index → code

  • Autism, autistic (childhood) (infantile) → F84.0
  • Disorder (of)autistic → F84.0
  • SyndromeKanner's (autism) → F84.0

Where it sits

  1. Chapter 5 Mental, Behavioral and Neurodevelopmental disorders (F01-F99)
  2. F80-F89 Pervasive and specific developmental disorders (F80-F89)
  3. F84 Pervasive developmental disorders
Billable codes
6
Subdivisions
6
CC / MCC codes
6 / 0
HCC V28 codes
0
New FY2027
0
Index entries
19

Codes in F84

  1. F84.0
    Autistic disorder 1 billable code
    BillableCC
  2. F84.2
    Rett's syndrome
    BillableCC
    Excludes1 3

    Excludes1

    • Asperger's syndrome (F84.5) F84.5
    • Autistic disorder (F84.0) F84.0
    • Other childhood disintegrative disorder (F84.3) F84.3
  3. F84.3
    Other childhood disintegrative disorder
    BillableCC
    Inclusion terms 4, Excludes1 3, Use additional code 1

    Inclusion terms

    • Dementia infantilis
    • Disintegrative psychosis
    • Heller's syndrome
    • Symbiotic psychosis

    Excludes1

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

    Use additional code

    • code to identify any associated neurological condition.
  4. F84.5
    Asperger's syndrome
    BillableCC
    Inclusion terms 3

    Inclusion terms

    • Asperger's disorder
    • Autistic psychopathy
    • Schizoid disorder of childhood
  5. F84.8
    Other pervasive developmental disorders
    BillableCC
    Inclusion terms 1

    Inclusion terms

    • Overactive disorder associated with intellectual disabilities and stereotyped movements
  6. F84.9
    Pervasive developmental disorder, unspecified
    BillableCC
    Inclusion terms 1

    Inclusion terms

    • Atypical autism

CC/MCC: as a secondary diagnosis, unless the principal diagnosis is on the code’s PDX exclusion list (MS-DRG v44 Appendix C; list on the code card).

Sources of each column.

Instructions

At F84

Code also

  • any associated medical condition and intellectual disabilities

Notes that also apply

Chapter 5 instructions (Includes 1, Excludes2 1): printed on the chapter 5 page.

Index entries

  • Rett's disease or syndrome → F84.2
  • Heller's disease or syndrome → F84.3
  • Asperger's disease or syndrome → F84.5
  • Dementia (degenerative (primary)) (persisting) (unspecified severity) (without behavioral disturbance, psychotic disturbance, mood disturbance, and anxiety)infantile, infantilis → F84.3
  • Disorder (of)childhood disintegrative NEC → F84.3
  • Disorder (of)disintegrative, childhood NEC → F84.3
  • Psychosis, psychoticdisintegrative (childhood) → F84.3
  • Psychosis, psychoticsymbiotic (childhood) → F84.3
  • Disorder (of)schizoid of childhood → F84.5
  • Psychopathy, psychopathicautistic → F84.5
  • Schizophrenia, schizophrenicsyndrome of childhood → F84.5
  • Autism, autistic (childhood) (infantile)atypical → F84.9
  • Disorder (of)pervasive, developmental → F84.9
  • Psychosis, psychoticchildhoodatypical → F84.8
  • Psychosis, psychoticinfantileatypical → F84.8
  • Delay, delayeddevelopmentpervasive → F84.9
  • Disorder (of)developmentalpervasive → F84.9
  • Disorder (of)developmentalpervasivespecified NEC → F84.8
  • Disability, disabilitiesintellectualwithautistic features → F84.9

NCHS Alphabetic Index. Index first, then the Tabular List.

Hierarchy