2027 ICD-10-CM Diagnosis Code F89Unspecified disorder of psychological development

ICD-10-CM Codes›F01–F99›F80-F89›F89

ICD-10-CM F89
CMSSource: CMS FY 2027 ICD-10-CM dataset · Effective Oct 1, 2026 – Sep 30, 2027

F89 is a billable ICD-10-CM diagnosis code for unspecified disorder of psychological development. It is valid on HIPAA claims for fiscal year 2027 (October 1, 2026 through September 30, 2027) and groups to MS-DRG 886. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Neurodevelopmental disorders.

Code Identity

ICD-10-CM Code
F89
Billable Status
Yes — Valid for Submission
Code Describes
Unspecified disorder of psychological development
Short Description
Unspecified disorder of psychological development
Same as the full description in the CMS dataset.
Chapter
F80-F89
Pervasive and specific developmental disorders

Code Classification

ChapterF01–F99Mental and behavioural disorders
SectionF80-F89Pervasive and specific developmental disorders
CategoryF89Unspecified disorder of psychological development
This CodeF89Unspecified disorder of psychological development

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Acanthosis nigricans
  • Achondrogenesis
  • Achondroplasia
  • CCNK-related neurodevelopmental disorder, severe intellectual disability, facial dysmorphism syndrome
  • CHD3-related developmental delay, speech delay, intellectual disability, abnormalities of vision, facial dysmorphism syndrome
  • CHD4-related neurodevelopmental disorder
  • CNTNAP2-related developmental and epileptic encephalopathy
  • Congenital contracture of limbs and face, hypotonia, developmental delay syndrome
  • Cortical blindness
  • Developmental disorder
  • Developmental hereditary disorder
  • Developmental mental disorder
  • Developmentally disabled
  • Disorder of psychological development
  • Early childhood developmental disability
  • Hyperkinetic syndrome with developmental delay
  • Immuno-osseous dysplasia
  • Insulin resistance
  • Left ventricular myocardial noncompaction cardiomyopathy
  • Lethal left ventricular non-compaction, seizures, hypotonia, cataract, developmental delay syndrome
  • Macrocephaly, intellectual disability, neurodevelopmental disorder, small thorax syndrome
  • Macroencephaly
  • Macrothrombocytopenia, lymphedema, developmental delay, facial dysmorphism, camptodactyly syndrome
  • Malabsorption of glucose
  • Megakaryocytic thrombocytopenia
  • Microcephalic primordial dwarfism, insulin resistance syndrome
  • Neurodevelopmental delay
  • Neurodevelopmental delay, hypotonia, cerebellar ataxia, cardiac conduction defects syndrome
  • Neurodevelopmental delay, intellectual disability, ataxia, feeding difficulty syndrome
  • Neurodevelopmental disorder
  • Neurodevelopmental disorder due to maternal use of alcohol
  • Neurodevelopmental disorder, craniofacial dysmorphism, cardiac defect, skeletal anomalies syndrome
  • Ocular anomalies, axonal neuropathy, developmental delay syndrome
  • Oculogastrointestinal neurodevelopmental syndrome
  • Palatal anomalies, widely spaced teeth, facial dysmorphism, developmental delay syndrome
  • Pervasive developmental disorder with cognitive developmental delay and complete impairment of functional language
  • Pervasive developmental disorder with cognitive developmental delay and marked impairment of functional language
  • Pili torti
  • Pili torti with developmental delay and neurological abnormality syndrome
  • Progressive microcephaly, seizures, cortical blindness, developmental delay syndrome
  • RERE-related neurodevelopmental syndrome
  • Secondary neurodevelopmental disorder
  • Severe achondroplasia, developmental delay, acanthosis nigricans syndrome
  • Severe hypotonia, psychomotor developmental delay, strabismus, cardiac septal defect syndrome
  • Severe neurodevelopmental disorder with feeding difficulties, stereotypic hand movement, bilateral cataract
  • Skeletal dysplasia, T-cell immunodeficiency, developmental delay syndrome
  • Spastic paraplegia, severe developmental delay, epilepsy syndrome
  • Speech delay
  • TELO2-related intellectual disability, neurodevelopmental disorder
  • Tic due to developmental disorder
  • Ventricular myocardial noncompaction cardiomyopathy
  • WAC-related facial dysmorphism, developmental delay, behavioral abnormalities syndrome

Instructional NotesGuidance

Instructions from the official ICD-10-CM Tabular List that apply to F89: its own notes plus those printed at Chapter 5. A note printed at a category, block or chapter applies to every code under it.

Includes

Further defines, or gives examples of, the content of the category.

From Chapter 5 (F01-F99) Mental and behavioural disorders applies to 872 codes
  • disorders of psychological development

Applicable To

Conditions this code is used for: synonyms of the title or, for "other specified" codes, the conditions assigned to it. The list is not exhaustive.

  • Developmental disorder NOS
  • Neurodevelopmental disorder NOS

Excludes2

Not included here: the excluded condition is not part of this code, but a patient may have both, so both codes may be reported.

From Chapter 5 (F01-F99) Mental and behavioural disorders applies to 872 codes
  • symptoms, signs and abnormal clinical laboratory findings, not elsewhere classified (R00-R99)

Source: CMS ICD-10-CM Tabular List. How to read instructional notes.

Referenced in Other NotesGuidance

Instructional notes printed at other codes that name F89, its category, or a range that includes it.

Excludes1 1

These codes carry an Excludes1 note naming F89: they are not reported together with it, unless the two conditions are unrelated.

  • Z55 Problems related to education and literacy
    disorders of psychological development (F80-F89) names F80-F89, which includes this code

Index to Diseases and InjuriesGuidance

Alphabetical index entries that point to this code.

Clinical ClassificationClinical

AHRQ’s CCSR groups this code into broader clinical categories.

CCSR MBD014
Neurodevelopmental disorders
Default principal diagnosis: inpatient Yes · outpatient Yes

Patient EducationClinical

Developmental Disabilities

Developmental disabilities are conditions that are usually present at birth. They can affect a child's growth and development. These conditions can cause physical, learning, language, or behavior issues. They can include:

The full article covers:

  • What are developmental disabilities?
  • What causes developmental disabilities?
  • How are developmental disabilities diagnosed?
  • What are the treatments for developmental disabilities?

Read the full article at MedlinePlus

Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.

Convert F89 to ICD-9-CMHistory

The closest ICD-9-CM equivalents under the General Equivalence Mappings.

ICD-9-CM
315.9 Development delay NOS
Approximate The match is approximate rather than exact.

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2026No changes
FY 2027CurrentCurrent code set, no changesEffective October 1, 2026 through September 30, 2027.

Questions About F89Overview

What is the ICD-10 code for unspecified disorder of psychological development?

The ICD-10-CM code for unspecified disorder of psychological development is F89. It is billable on HIPAA-covered claims from October 1, 2026 through September 30, 2027.

Is F89 (Unspecified disorder of psychological development) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report unspecified disorder of psychological development on HIPAA-covered claims from October 1, 2026 through September 30, 2027.

What MS-DRG does F89 group to?

When unspecified disorder of psychological development is the principal diagnosis on an inpatient stay, it groups to MS-DRG 886 (behavioral and Developmental Disorders), which carries a relative weight of 1.6455. Higher weights mean higher Medicare reimbursement.

What is the ICD-9 equivalent of F89?

Under the General Equivalence Mappings, unspecified disorder of psychological development converts to ICD-9-CM 315.9 (development delay NOS). The mapping is approximate, so confirm the match fits the documentation.