DxCodebookFY2027 · Oct 1, 2026 – Sep 30, 2027

Category · FY2027

F64 Gender identity disorders

  • Header · not billable

F64 is not billable. The category heads 6 billable codes in FY2027: the 6 codes directly below it.

FY2027 changes under F64: 1 billable code added. All FY2027 changes.

Index → code

  • Transgender → F64.0
  • Transsexualism → F64.0
  • Identity disorder (child) → F64.9

Where it sits

  1. Chapter 5 Mental, Behavioral and Neurodevelopmental disorders (F01-F99)
  2. F60-F69 Disorders of adult personality and behavior (F60-F69)
  3. F64 Gender identity disorders
Billable codes
6
Subdivisions
6
CC / MCC codes
0 / 0
HCC V28 codes
0
New FY2027
1
Index entries
25

Codes in F64

  1. F64.0
    Transsexualism
    Billable
    Inclusion terms 4, Excludes1 1

    Inclusion terms

    • Gender dysphoria in adolescents and adults
    • Gender identity disorder in adolescence and adulthood
    • Gender incongruence in adolescents and adults
    • Transgender

    Excludes1

    • gender identity disorder of childhood (F64.2) F64.2
  2. F64.1
    Dual role transvestism
    Billable
    Excludes1 1, Excludes2 1, Use additional code 1

    Excludes1

    • gender identity disorder in childhood (F64.2) F64.2

    Excludes2

    • fetishistic transvestism (F65.1) F65.1

    Use additional code

    • code to identify sex reassignment status (Z87.890-) Z87.890
  3. F64.2
    Gender identity disorder of childhood
    Billable
    Inclusion terms 2, Excludes1 1, Excludes2 1

    Inclusion terms

    • Gender dysphoria in children
    • Gender incongruence of childhood

    Excludes1

    • gender identity disorder in adolescence and adulthood (F64.0) F64.0

    Excludes2

    • sexual maturation disorder (F66) F66
  4. F64.8
    Other gender identity disorders
    Billable
    Inclusion terms 1

    Inclusion terms

    • Other specified gender dysphoria
  5. F64.9
    Gender identity disorder, unspecified
    Billable
    Inclusion terms 3

    Inclusion terms

    • Gender dysphoria, unspecified
    • Gender incongruence, unspecified
    • Gender-role disorder NOS
  6. F64.A
    Gender identity disorder, in remission New FY2027
    Billable
    Inclusion terms 1

    Inclusion terms

    • Gender dysphoria, in remission (desistance)

Sources of each column.

Instructions

Notes that also apply

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

Index entries

  • Transgender → F64.0
  • Transsexualism → F64.0
  • Transvestism, transvestitism (dual-role) → F64.1
  • Psychosexual identity disorder of childhood → F64.2
  • Identity disorder (child) → F64.9
  • Crisispsychosexual identity → F64.2
  • Identity disorder (child)gender role → F64.2
  • Identity disorder (child)psychosexual → F64.2
  • Disorder (of)gender incongruence → F64.9
  • Disorder (of)gender-identity or -role → F64.9
  • Dysphoriagender → F64.9
  • Disorder (of)gender incongruencein adolescents and adults → F64.0
  • Disorder (of)gender-identity or -roleof adolescence or adulthood → F64.0
  • Deviation (in)sexualtransvestism → F64.1
  • Disorder (of)gender incongruenceof childhood → F64.2
  • Disorder (of)gender-identity or -rolechildhood → F64.2
  • Disorder (of)psychosexualidentity of childhood → F64.2
  • Disorder (of)gender-identity or -rolespecified NEC → F64.8
  • Dysphoriagenderspecified NEC → F64.8
  • Disorder (of)gender-identity or -rolein remission → F64.A
  • Dysphoriagenderinadolescence and adulthood → F64.0
  • Dysphoriagenderinchildren → F64.2
  • Disorder (of)gender-identity or -roleof adolescence or adulthoodnontranssexual → F64.8
  • Disorder (of)psychologicalassociated withuncertainty about gender identity → F64.9
  • Dysphoriagenderinremission (desistance) → F64.A

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

Hierarchy