DxCodebookFY2027 · Oct 1, 2026 – Sep 30, 2027

Category · FY2027

F78 Other intellectual disabilities

  • Header · not billable

F78 is not billable. The category heads 2 billable codes in FY2027, grouped under 1 subdivision.

Index → code

  • Disability, disabilitiesintellectualgenetic related → F78.A9
  • Disability, disabilitiesintellectualSYNGAP1-related → F78.A1
  • Disability, disabilitiesintellectualautosomal dominant → F78.A9

Where it sits

  1. Chapter 5 Mental, Behavioral and Neurodevelopmental disorders (F01-F99)
  2. F70-F79 Intellectual Disabilities (F70-F79)
  3. F78 Other intellectual disabilities
Billable codes
2
Subdivisions
1
CC / MCC codes
0 / 0
HCC V28 codes
0
New FY2027
0
Index entries
26

Codes in F78

  1. F78.A
    Other genetic related intellectual disabilities
    Header
  2. F78.A1
    SYNGAP1-related intellectual disability
    Billable
    Code also 7

    Code also

    • , if applicable, any associated:
    • autism spectrum disorder (F84.0) F84.0
    • autistic disorder (F84.0) F84.0
    • encephalopathy (G93.4-) G93.4
    • epilepsy and recurrent seizures (G40.-) G40
    • other pervasive developmental disorders (F84.8) F84.8
    • pervasive developmental disorder, NOS (F84.9) F84.9
  3. F78.A9
    Other genetic related intellectual disability
    Billable
    Code also 1

    Code also

    • , if applicable, any associated disorders

Sources of each column.

Instructions

Notes that also apply

Block F70-F79 instructions (Excludes1 1, Code first 1): printed on the block page.

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

Index entries

  • Disability, disabilitiesintellectualSYNGAP1-related → F78.A1
  • Disability, disabilitiesintellectualautosomal dominant → F78.A9
  • Disability, disabilitiesintellectualautosomal recessive → F78.A9
  • Disability, disabilitiesintellectualgenetic related → F78.A9
  • Disability, disabilitiesintellectualspecified level NEC → F78.A9
  • Disability, disabilitiesintellectualX-linked (syndromic) (Bain type) → F78.A9
  • Disability, disabilitiesintellectualwithpathogenic SYNGAP1 (genetic) (variant) → F78.A1
  • Disability, disabilitiesintellectualgenetic relatedSYNGAP1-related → F78.A1
  • Disability, disabilitiesintellectualwithpathogenic CHAMP1 (genetic) (variant) → F78.A9
  • Disability, disabilitiesintellectualwithpathogenic HNRNPH2 (genetic) (variant) → F78.A9
  • Disability, disabilitiesintellectualwithpathogenic SATB2 (genetic) (variant) → F78.A9
  • Disability, disabilitiesintellectualwithpathogenic SETBP1 (genetic) (variant) → F78.A9
  • Disability, disabilitiesintellectualwithpathogenic STXBP1 (genetic) (variant) → F78.A9
  • Disability, disabilitiesintellectualgenetic relatedspecified NEC → F78.A9
  • Disability, disabilitiesintellectualinautosomal dominant mental retardation → F78.A9
  • Disability, disabilitiesintellectualinautosomal recessive mental retardation → F78.A9
  • Disability, disabilitiesintellectualinSATB2-associated syndrome → F78.A9
  • Disability, disabilitiesintellectualinSETBP1 disorder → F78.A9
  • Disability, disabilitiesintellectualinSTXBP1 encephalopathy with epilepsy → F78.A9
  • Disability, disabilitiesintellectualinX-linked mental retardation (syndromic) (Bain type) → F78.A9
  • Disability, disabilitiesintellectualgenetic relatedwithpathogenic SYNGAP1 (variant) → F78.A1
  • Disability, disabilitiesintellectualgenetic relatedwithpathogenic CHAMP1 (variant) → F78.A9
  • Disability, disabilitiesintellectualgenetic relatedwithpathogenic HNRNPH2 (variant) → F78.A9
  • Disability, disabilitiesintellectualgenetic relatedwithpathogenic SATB2 (variant) → F78.A9
  • Disability, disabilitiesintellectualgenetic relatedwithpathogenic SETBP1 (variant) → F78.A9
  • Disability, disabilitiesintellectualgenetic relatedwithpathogenic STXBP1 (variant) → F78.A9

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

Hierarchy