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G40.42

Billable

Cyclin-Dependent Kinase-Like 5 Deficiency Disorder

G40.42 is the ICD-10-CM code for Cyclin-Dependent Kinase-Like 5 Deficiency Disorder. It is a billable, specific code valid for reimbursement.

Status
Billable
Chapter
G00-G99
Parent
G40.4
Edition
FY2026

G00-G99 Diseases of the nervous system

Includes

  • •CDKL5

Use additional code

  • •code, if known, to identify associated manifestations, such as:
  • •cortical blindness (H47.61-)
  • •global developmental delay (F88)

Frequently asked questions

What is ICD-10 code G40.42?
G40.42 is the ICD-10-CM code for "Cyclin-Dependent Kinase-Like 5 Deficiency Disorder". It falls under G00-G99 Diseases of the nervous system.
Is G40.42 a billable code?
Yes — G40.42 is a billable, specific ICD-10-CM code valid for reimbursement.

Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.

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