2026 ICD-10-CM Diagnosis Code QA0.0102CACNA1A-related neurodevelopmental disorder

ICD-10-CM Codes›Q00-Q99›Q90-Q99›QA0

ICD-10-CM QA0.0102
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

QA0.0102 is a billable ICD-10-CM diagnosis code for CACNA1A-related neurodevelopmental disorder. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to MS-DRG 564 through 566. The code is exempt from POA reporting.

Code Identity

ICD-10-CM Code
QA0.0102
Billable Status
Yes — Valid for Submission
Code Describes
CACNA1A-related neurodevelopmental disorder
Short Description
CACNA1A-related neurodevelopmental disorder
Same as the full description in the CMS dataset.
Parent Code
QA0.010
Neurodevelopmental disorders, related to pathogenic variants in ion channel genes

Code Classification

ChapterQ00-Q99Congenital malformations, deformations and chromosomal abnormalities
SectionQ90-Q99Chromosomal abnormalities, not elsewhere classified
CategoryQA0Neurodevelopmental disorders related to specific genetic pathogenic variants
This CodeQA0.0102CACNA1A-related neurodevelopmental disorder

Present on Admission (POA)Billing

QA0.0102 is exempt from POA reporting on inpatient claims to general acute care hospitals. Review other POA exempt codes.

Index to Diseases and InjuriesGuidance

Alphabetical index entries that point to this code.

External Cause of Injuries IndexGuidance

References for this code in the External Cause of Injuries Index.

    • Disorder(of)
      • neurodevelopmental
        • CACNA1A-related

Code History & ChangesHistory

New Code QA0.0102 was added to the ICD-10-CM code set for FY 2026, effective October 1, 2025.

Replacement QA0.0102 replaces the following previously assigned code(s):

  • F89 - Unspecified disorder of psychological development
FY 2026AddedAdded to the ICD-10-CM code setEffective October 1, 2025.
FY 2026CurrentRevised in the current code setEffective October 1, 2025 through September 30, 2026.

Questions About QA0.0102Overview

Is QA0.0102 a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report CACNA1A-related neurodevelopmental disorder on HIPAA-covered claims from October 1, 2025 through September 30, 2026.

What MS-DRG does QA0.0102 group to?

When CACNA1A-related neurodevelopmental disorder is the principal diagnosis on an inpatient stay, it groups to MS-DRG 564, 565, 566, with relative weights from 0.7493 to 1.5436 depending on complications. Higher weights mean higher Medicare reimbursement.

Is QA0.0102 exempt from POA reporting?

Yes. CMS lists this code among those exempt from present on admission reporting, so hospitals do not assign a POA indicator for CACNA1A-related neurodevelopmental disorder on inpatient claims.