F78.A1

ICD-10Billable

SYNGAP1-related intellectual disability

Official ICD-10-CM descriptor (FY2026)

SYNGAP1-related intellectual disability

F78.A1 is valid for submission on a claim — CMS flags it as a billable, specific code.

Code also

Two codes may be needed; sequencing depends on the reason for the encounter.

  • , if applicable, any associated:
  • autism spectrum disorder (F84.0)
  • autistic disorder (F84.0)
  • encephalopathy (G93.4-)
  • epilepsy and recurrent seizures (G40.-)
  • other pervasive developmental disorders (F84.8)
  • pervasive developmental disorder, NOS (F84.9)

Related codes in F78A

Where this code sits

Parent code
F78.A

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Source

ICD-10-CM FY2026. Centers for Medicare & Medicaid Services (CMS) / National Center for Health Statistics (NCHS), “2026 ICD-10-CM Code Descriptions in Tabular Order” (icd10cm_order_2026.txt). Download the original file from cms.gov. Public domain (US Government work). Descriptors, billable flags and instructional notes on this page are reproduced from that file without modification. Krasyn adds no clinical guidance.

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