All ICD10 Codes
Chapter 5

F01–F99: Mental, Behavioral and Neurodevelopmental Disorders

Mental, Behavioral and Neurodevelopmental Disorders diagnostic classification updated for 2026.

Chapter Instructions

Includes
  • disorders of psychological development
Excludes2(Not included here. Code separately if applicable.)
  • symptoms, signs and abnormal clinical laboratory findings, not elsewhere classified (R00-R99)
All CodesBillable Only
Internal Codes
PrevNext
  • F98—

    Other behavioral and emotional disorders with onset usually occurring in childhood and adolescence

  • F98.0—

    Enuresis not due to a substance or known physiological condition

  • F98.1—

    Encopresis not due to a substance or known physiological condition

  • F98.2—

    Other feeding disorders of infancy and childhood

  • F98.21—

    Rumination disorder of infancy and childhood

  • F98.29—

    Other feeding disorders of infancy and early childhood

  • F98.3—

    Pica of infancy and childhood

  • F98.4—

    Stereotyped movement disorders

  • F98.5—

    Adult onset fluency disorder

  • F98.8—

    Other specified behavioral and emotional disorders with onset usually occurring in childhood and adolescence

  • F98.9—

    Unspecified behavioral and emotional disorders with onset usually occurring in childhood and adolescence

  • F99—

    Mental disorder, not otherwise specified

PreviousPage 23 of 23