ICD-10-CM 2027
ICD-10 code for developmental disorder
From the official ICD-10-CM alphabetic index entry “Disorder (of) › developmental”. Page updated September 29, 2026.
About coding developmental disorder
The ICD-10-CM code for developmental disorder is F89 (Unspecified disorder of psychological development). The official index lists 23 more specific codes, so check the documentation for details such as type, cause, site or severity before settling on F89.
It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.
In MS-DRG v44.0, it is part of the grouping logic for DRG 886 (Behavioral and Developmental Disorders, relative weight 1.8678), in MDC 19 (Mental Diseases and Disorders), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.
It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.
More specific developmental disorder codes (official index)
- arithmetical skills F81.2 — Mathematics disorder
- coordination (motor) F82 — Specific developmental disorder of motor function
- expressive writing F81.81 — Disorder of written expression
- language F80.9 — Developmental disorder of speech and language, unspecified
- expressive F80.1 — Expressive language disorder
- mixed receptive and expressive F80.2 — Mixed receptive-expressive language disorder
- receptive type F80.2 — Mixed receptive-expressive language disorder
- specified NEC F80.89 — Other developmental disorders of speech and language
- learning F81.9 — Developmental disorder of scholastic skills, unspecified
- arithmetical F81.2 — Mathematics disorder
- reading F81.0 — Specific reading disorder
- mixed F88 — Other disorders of psychological development
- motor coordination or function F82 — Specific developmental disorder of motor function
- pervasive F84.9 — Pervasive developmental disorder, unspecified
- specified NEC F84.8 — Other pervasive developmental disorders
- phonological F80.0 — Phonological disorder
- reading F81.0 — Specific reading disorder
- scholastic skills
- mixed F81.89 — Other developmental disorders of scholastic skills
- specified NEC F88 — Other disorders of psychological development
- speech F80.9 — Developmental disorder of speech and language, unspecified
- articulation F80.0 — Phonological disorder
- specified NEC F80.89 — Other developmental disorders of speech and language
- written expression F81.81 — Disorder of written expression
Common questions about developmental disorder ICD-10 codes
What is the ICD-10 code for developmental disorder?
- F89 — Unspecified disorder of psychological development. More specific codes apply when the documentation supports them: F81.2, F82, F81.81, F80.9 and others below.
What is the ICD-10 code for arithmetical skills developmental disorder?
- F81.2 — Mathematics disorder.
What is the ICD-10 code for coordination developmental disorder?
- F82 — Specific developmental disorder of motor function.
What is the ICD-10 code for expressive writing developmental disorder?
- F81.81 — Disorder of written expression.
What is the ICD-10 code for language developmental disorder?
- F80.9 — Developmental disorder of speech and language, unspecified.
What is the ICD-10 code for learning developmental disorder?
- F81.9 — Developmental disorder of scholastic skills, unspecified.
What is the ICD-10 code for mixed developmental disorder?
- F88 — Other disorders of psychological development.
Is F89 billable?
- Yes. F89 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can F89 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict F89 as a principal diagnosis.
Is F89 a CC or MCC?
- No. F89 is neither a CC nor an MCC under MS-DRG v44.0.