2017/18 ICD-10-CM Diagnosis Code F84.2

Rett's syndrome

Type 1 Excludes
Type 1 Excludes Help
A type 1 excludes note is a pure excludes. It means "not coded here". A type 1 excludes note indicates that the code excluded should never be used at the same time as F84.2. A type 1 excludes note is for used for when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
  • Asperger's syndrome (
    ICD-10-CM Diagnosis Code F84.5

    Asperger's syndrome

      2016 2017 2018 Billable/Specific Code
    Applicable To
    • Asperger's disorder
    • Autistic psychopathy
    • Schizoid disorder of childhood
    F84.5
    )
  • Autistic disorder (
    ICD-10-CM Diagnosis Code F84.0

    Autistic disorder

      2016 2017 2018 Billable/Specific Code
    Applicable To
    • Autism spectrum disorder
    • Infantile autism
    • Infantile psychosis
    • Kanner's syndrome
    Type 1 Excludes
    • Asperger's syndrome (F84.5)
    F84.0
    )
  • Other childhood disintegrative disorder (
    ICD-10-CM Diagnosis Code F84.3

    Other childhood disintegrative disorder

      2016 2017 2018 Billable/Specific Code Pediatric Dx (0-17 years)
    Applicable To
    • Dementia infantilis
    • Disintegrative psychosis
    • Heller's syndrome
    • Symbiotic psychosis
    Type 1 Excludes
    • Asperger's syndrome (F84.5)
    • Autistic disorder (F84.0)
    • Rett's syndrome (F84.2)
    Use Additional
    • code to identify any associated neurological condition.
    F84.3
    )
The following code(s) above F84.2 contain annotation back-references
Annotation Back-References
In this context, annotation back-references refer to codes that contain:
  • Applicable To annotations, or
  • Code Also annotations, or
  • Code First annotations, or
  • Excludes1 annotations, or
  • Excludes2 annotations, or
  • Includes annotations, or
  • Note annotations, or
  • Use Additional annotations
that may be applicable to F84.2:
  • F01-F99
    2018 ICD-10-CM Range F01-F99

    Mental, Behavioral and Neurodevelopmental disorders

    Includes
    • disorders of psychological development
    Type 2 Excludes
    • symptoms, signs and abnormal clinical laboratory findings, not elsewhere classified (R00-R99)
    Mental, Behavioral and Neurodevelopmental disorders
  • F84
    ICD-10-CM Diagnosis Code F84

    Pervasive developmental disorders

      2016 2017 2018 Non-Billable/Non-Specific Code
    Use Additional
    • code to identify any associated medical condition and intellectual disabilities.
    Pervasive developmental disorders
Approximate Synonyms Clinical Information ICD-10-CM F84.2 is grouped within Diagnostic Related Group(s) (MS-DRG v35.0):

Convert F84.2 to ICD-9-CM

Code History
Code annotations containing back-references to F84.2:

Diagnosis Index entries containing back-references to F84.2:

ICD-10-CM Codes Adjacent To F84.2
F81 Specific developmental disorders of scholastic skills
F81.0 Specific reading disorder
F81.2 Mathematics disorder
F81.8 Other developmental disorders of scholastic skills
F81.81 Disorder of written expression
F81.89 Other developmental disorders of scholastic skills
F81.9 Developmental disorder of scholastic skills, unspecified
F82 Specific developmental disorder of motor function
F84 Pervasive developmental disorders
F84.0 Autistic disorder
F84.2 Rett's syndrome
F84.3 Other childhood disintegrative disorder
F84.5 Asperger's syndrome
F84.8 Other pervasive developmental disorders
F84.9 Pervasive developmental disorder, unspecified
F88 Other disorders of psychological development
F89 Unspecified disorder of psychological development
F90 Attention-deficit hyperactivity disorders
F90.0 Attention-deficit hyperactivity disorder, predominantly inattentive type
F90.1 Attention-deficit hyperactivity disorder, predominantly hyperactive type
F90.2 Attention-deficit hyperactivity disorder, combined type

Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.