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ICD10BillableValid for clinical use

ICD-10 Code F78.A9: Other genetic related intellectual disability

F78.A9 is a billable ICD-10 diagnosis code used to classify Other genetic related intellectual disability in medical records and claims. You may see this code in hospital records, discharge summaries, insurance claims, encounter documentation, referrals, or other healthcare billing and coding records. ICD-10 codes are diagnosis classification codes used in healthcare records, reporting, coding workflows, and billing support. This code sits within the broader ICD-10 area for Mental, Behavioral and Neurodevelopmental disorders (F01-F99).

Reviewed by HealthAssure Clinical TeamUpdated 26 May 2026

What is this code?

ICD-10 codes are diagnosis classification codes used in healthcare records, reporting, coding workflows, and billing support. This code sits within the broader ICD-10 area for Mental, Behavioral and Neurodevelopmental disorders (F01-F99).

When is it used?

  • May be used when a clinician documents other genetic related intellectual disability in a patient's medical record.
  • May appear in hospital records, claims, referrals, and clinical documentation.
  • This code can be used as a clinically usable diagnosis entry in standardized coding workflows.

What it does not mean

  • A code alone does not explain severity, treatment plan, or outcome.
  • A medical code should not be treated as a substitute for a doctor's diagnosis or advice.

Code hierarchy

chapter
5Mental, Behavioral and Neurodevelopmental disorders (F01-F99)
block
F70-F79Intellectual Disabilities
category
F78Other intellectual disabilities
category
F78.AOther genetic related intellectual disabilities
currentF78.A

Official coding notes

Code also
  • , if applicable, any associated disorders

Where you may see this code

You may see this code in hospital records, discharge summaries, insurance claims, encounter documentation, referrals, or other healthcare billing and coding records.

Coverage-related procedures and services

CPT 96137high
PSYCHOLOGICAL OR NEUROPSYCHOLOGICAL TEST ADMINISTRATION AND SCORING BY PHYSICIAN OR OTHER QUALIFIED HEALTH CARE PROFESSIONAL, TWO OR MORE TESTS, ANY METHOD; EACH ADDITIONAL 30 MINUTES (LIST SEPARATELY IN ADDITION TO CODE FOR PRIMARY PROCEDURE)
Source: CMS coverage guidance
CPT 96136high
PSYCHOLOGICAL OR NEUROPSYCHOLOGICAL TEST ADMINISTRATION AND SCORING BY PHYSICIAN OR OTHER QUALIFIED HEALTH CARE PROFESSIONAL, TWO OR MORE TESTS, ANY METHOD; FIRST 30 MINUTES
Source: CMS coverage guidance
CPT 96139high
PSYCHOLOGICAL OR NEUROPSYCHOLOGICAL TEST ADMINISTRATION AND SCORING BY TECHNICIAN, TWO OR MORE TESTS, ANY METHOD; EACH ADDITIONAL 30 MINUTES (LIST SEPARATELY IN ADDITION TO CODE FOR PRIMARY PROCEDURE)
Source: CMS coverage guidance
CPT 96138high
PSYCHOLOGICAL OR NEUROPSYCHOLOGICAL TEST ADMINISTRATION AND SCORING BY TECHNICIAN, TWO OR MORE TESTS, ANY METHOD; FIRST 30 MINUTES
Source: CMS coverage guidance
CPT 96131high
PSYCHOLOGICAL TESTING EVALUATION SERVICES BY PHYSICIAN OR OTHER QUALIFIED HEALTH CARE PROFESSIONAL, INCLUDING INTEGRATION OF PATIENT DATA, INTERPRETATION OF STANDARDIZED TEST RESULTS AND CLINICAL DATA, CLINICAL DECISION MAKING, TREATMENT PLANNING AND REPORT, AND INTERACTIVE FEEDBACK TO THE PATIENT, FAMILY MEMBER(S) OR CAREGIVER(S), WHEN PERFORMED; EACH ADDITIONAL HOUR (LIST SEPARATELY IN ADDITION TO CODE FOR PRIMARY PROCEDURE)
Source: CMS coverage guidance
CPT 96130high
PSYCHOLOGICAL TESTING EVALUATION SERVICES BY PHYSICIAN OR OTHER QUALIFIED HEALTH CARE PROFESSIONAL, INCLUDING INTEGRATION OF PATIENT DATA, INTERPRETATION OF STANDARDIZED TEST RESULTS AND CLINICAL DATA, CLINICAL DECISION MAKING, TREATMENT PLANNING AND REPORT, AND INTERACTIVE FEEDBACK TO THE PATIENT, FAMILY MEMBER(S) OR CAREGIVER(S), WHEN PERFORMED; FIRST HOUR
Source: CMS coverage guidance

Coding guidelines

Common synonyms

Other genetic related intellectual disability

Frequently asked questions

Code details

CodeF78.A9
SystemICD10
Display nameOther genetic related intellectual disability
ChapterMental, Behavioral and Neurodevelopmental disorders (F01-F99)
BlockIntellectual Disabilities

Flags

BillableYes
Valid clinical useYes

Source

SourceICD-10
Version2026-annual
Releaseannual
Year2026

Index terms

Matched terms
Disability, disabilitiesDisability, disabilitiesDisability, disabilitiesDisability, disabilitiesDisability, disabilitiesDisability, disabilitiesDisability, disabilitiesDisability, disabilitiesDisability, disabilitiesDisability, disabilitiesDisability, disabilitiesDisability, disabilities

About this content

This page is prepared by HealthAssure's clinical team using official coding standards from ICD-10. AI tools assist with drafting explanations, which are then reviewed and verified by healthcare professionals for accuracy. This content is for informational purposes and does not replace professional medical advice. Meet our team.

ICD-10 Code F78.A9 for Other genetic related intellectual disability | HealthAssure