MedCodeSearch
ICD-10-CM Current in FY 2027

F84.2

Rett's syndrome

Release
FY 2027
Effective
Official source (opens in a new tab)

Hierarchy

Where F84.2 sits in the official hierarchy. Each level is the code it is classified under.

  1. F84 Parent Pervasive developmental disorders
  2. F84.2 This code Rett's syndrome

Official Coding Notes

Reproduced verbatim from the FY 2027 ICD-10-CM files. Notes labelled as inherited are declared on a parent code and apply here too.

Excludes1

Asperger's syndrome ( F84.5 )

Excludes1

Autistic disorder ( F84.0 )

Excludes1

Other childhood disintegrative disorder ( F84.3 )

Code Also

any associated medical condition and intellectual disabilities

Inherited from F84 — Pervasive developmental disorders

Version History

How F84.2 appears in each release imported from the official files, newest first.

  1. FY 2027 Effective

    Current

    Rett's syndrome

  2. FY 2026 Effective

    Unchanged

    Rett's syndrome

Related Codes

Other codes under F84

Codes whose official notes reference F84.2

Data Source

Code information on this page is derived from the FY 2027 ICD-10-CM files published by CDC NCHS and CMS.

Release
FY 2027
Effective
Source file
icd10cm-code-descriptions-2027.zip

Official ICD-10-CM source files (opens in a new tab)

MedCodeSearch is an independent reference service and is not affiliated with CMS, CDC, or the U.S. government.

Look up another code

Search ICD-10-CM, ICD-10-PCS and HCPCS Level II by code or description.