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F84.9

Pervasive developmental disorder, unspecified

Billable FY2026 2025-10-01 → 2026-09-30
This is the unspecified option. 5 more specific codes sit alongside it. Worth checking whether the documentation supports one of them.
Exclusions 1 never code together
F01-F99chapter
Excludes2
  • symptoms, signs and abnormal clinical laboratory findings, not elsewhere classified (R00-R99)R00-R99

Excludes2 — not included here, but the patient may have both. Code both when documented.

Instructional notes 3
F84code
Code also
  • any associated medical condition and intellectual disabilities
F84.9code
Inclusion terms
  • Atypical autism
F01-F99chapter
Includes
  • disorders of psychological development
Index entries leading here 4
  • Autism, autistic (childhood) (infantile) F84.0
  • Disability, disabilities
    • intellectual F79
      • with
        • autistic features F84.9
  • Delay, delayed
  • Disorder (of) — see also Disease
    • developmental F89
    • pervasive, developmental F84.9
Alongside this code 5 same parent — F84
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
Additional references
AHA Coding Clinic® Licence required

Official coding advice for this code. Published by the American Hospital Association. Not included in this installation.

Risk adjustment

RX08HCC133

Presence is a property of the code. Untick a model to hide it everywhere.

This code

Billable
yes
Code set
FY2026
Parent
F84
Block
F80-F89
Siblings
5

Present FY2024–FY2027.