ICD10BillableValid for clinical use

ICD-10 Code Z15.1: Genetic susceptibility to epilepsy and neurodevelopmental disorders

Z15.1 is a billable ICD-10 diagnosis code used to classify Genetic susceptibility to epilepsy and neurodevelopmental disorders 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 Factors influencing health status and contact with health services (Z00-Z99).

Reviewed by HealthAssure Clinical TeamUpdated 21 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 Factors influencing health status and contact with health services (Z00-Z99).

When is it used?

  • May be used when a clinician documents genetic susceptibility to epilepsy and neurodevelopmental disorders 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
21Factors influencing health status and contact with health services (Z00-Z99)
block
Z14-Z15Genetic carrier and genetic susceptibility to disease
category
Z15Genetic susceptibility to disease
currentZ15

Official coding notes

Code also
  • , if applicable, related disorders such as:
  • developmental and epileptic encephalopathy (G93.45)
  • developmental disorder of speech and language (F80.-)
  • developmental disorders of scholastic skills (F81.-)
  • epilepsy, by specific type (G40.-)
  • intellectual disabilities (F70-F79)
  • other neurodevelopmental disorder (F88)
  • pervasive developmental disorders (F84.-)

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.

Related specialists

General PhysicianPsychiatristClinical PsychologistNeurologist

Coding guidelines

Common synonyms

Genetic susceptibility to epilepsy and neurodevelopmental disorders

Frequently asked questions

Code details

CodeZ15.1
SystemICD10
Display nameGenetic susceptibility to epilepsy and neurodevelopmental disorders
ChapterFactors influencing health status and contact with health services (Z00-Z99)
BlockGenetic carrier and genetic susceptibility to disease

Flags

BillableYes
Valid clinical useYes

Source

SourceICD-10
Version2026-annual
Releaseannual
Year2026

Index terms

Matched terms
GeneticGenetic

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 Z15.1 for Genetic susceptibility to epilepsy and neurodevelopmental disorders | HealthAssure