U.S. ICD-10-CM · FY 2027

F89 ICD-10-CM Code: Unspecified disorder of psychological development

A clear reference for the official code description, hierarchy, and related coding information from the FY 2027 U.S. release.

Code definition

Official description

F89

Unspecified disorder of psychological development

ICD-10-CM diagnosis code · United States clinical modification

Classification

Where F89 sits

  1. 1

    Chapter 5

    Mental, Behavioral and Neurodevelopmental disorders (F01-F99)

  2. 2

    Section

    Pervasive and specific developmental disorders (F80-F89)

  3. 3

    Category F89

    Unspecified disorder of psychological development

  4. 4

    Code F89

    Unspecified disorder of psychological development

Documentation details

Notes for this code

Inclusion terms

  • Developmental disorder NOS
  • Neurodevelopmental disorder NOS

Code first

No “code first” instruction is listed for F89.

Use additional code

No “use additional code” instruction is listed for F89.

Excludes1

Conditions that should not be reported together with this code.

No Excludes1 note is listed for F89.

Excludes2

Conditions not included here that may be reported separately when present.

No Excludes2 note is listed for F89.

Transparency

Source and release

Data release

U.S. ICD-10-CM · FY 2027

Effective date

Oct 1, 2026

This reference is generated from Vero’s ICD-10-CM description, hierarchy, and code-note dataset. The visible content and structured data share that source.

Review the CDC/NCHS ICD-10-CM source

Code-specific guidance

Frequently asked questions

What does ICD-10-CM code F89 mean?

F89 is the FY 2027 U.S. ICD-10-CM code for “Unspecified disorder of psychological development.”

Is F89 a billable or specific ICD-10-CM code?

Yes. In the FY 2027 reference data used on this page, F89 has no child codes and is presented as a billable/specific code. Always confirm the active code set and payer requirements before use.

Where is F89 located in ICD-10-CM?

F89 is listed in Chapter 5, Mental, Behavioral and Neurodevelopmental disorders (F01-F99), within Pervasive and specific developmental disorders (F80-F89) (F80–F89), under category F89, Unspecified disorder of psychological development.

What coding notes are listed for F89?

Its listed inclusion terms are Developmental disorder NOS; Neurodevelopmental disorder NOS. No code-first instruction is listed. No Excludes1 note is listed. No Excludes2 note is listed.

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