Alphabetic Index FY2027

QA0.0

Neurodevelopmental disorders related to pathogenic variants in specific genes

FY2027Chapter 17: Congenital malformations, deformations, chromosomal abnormalities, and genetic disorders/QA0–QA1 Genetic disorders, not elsewhere classified

Non-billable headerNot valid on its own. Use one of the more specific codes under it.

QA0.0 is a non-billable ICD-10-CM code header for neurodevelopmental disorders related to pathogenic variants in specific genes. Report a more specific code from it instead. It is part of the FY2027 code set, effective October 1, 2026. The more specific code under it is QA0.01 Neurodevelopmental disorders related to pathogenic variants in certain specific genes. Its coding notes include a Code also instruction and 1 Excludes2 entry.

Guidelines tip

From the FY2027 Official Guidelines. ICD10Ref adds no rules of its own.

Chapter 17 codes can be used for life. Manifestations that are an inherent part of a specifically coded anomaly are not coded separately. A corrected malformation is reported with a personal history code.

Guidelines I.C.17Congenital malformations and genetic disordersRead the official text

Code also

Two codes may be needed to describe the condition. This note gives no sequencing order.

Inherited from QA0 Neurodevelopmental disorders related to specific genetic pathogenic variants
  • , if applicable, any associated conditions, such as:
    • attention-deficit hyperactivity disorders (F90.-)
    • autism spectrum disorder (F84.0)
    • developmental and epileptic encephalopathy (G93.45)
    • epilepsy, by specific type (G40.-)
    • intellectual disabilities (F70-F79)
    • pervasive developmental disorders (F84.-)

Excludes2

Not included here. Both codes may be reported if the patient has both conditions.

Also from chapter/block level (1 note)
Inherited from Chapter 17 Congenital malformations, deformations, chromosomal abnormalities, and genetic disorders
  • inborn errors of metabolism (E70-E88)

Notes

Also from chapter/block level (1 note)
Inherited from Chapter 17 Congenital malformations, deformations, chromosomal abnormalities, and genetic disorders
  • Codes from this chapter are not for use on maternal records

More specific codes under QA0.0 1