MCMedicalCodingSoftware
F78.A1

F78.A1: SYNGAP1-related intellectual disability

Billable / specific codeICD-10-CM

F78.A1 is a billable, specific ICD-10-CM code for syngap1-related intellectual disability. It is valid for submission on a claim.

Check F78.A1 with the rest of the claim: free scrubber

Code also

Both codes may be needed to describe the encounter fully. Sequencing depends on the reason for the visit.

  • , 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)

Risk adjustment

No CMS-HCC V28 category: this code does not change a RAF score.

Medicare coverage

F78.A1 is named in 7 Medicare coverage policies: 5 listing it as supporting medical necessity, and 2 listing it as NOT covered. Which one applies depends on your Medicare contractor.

  • A52434Health and Behavior Assessment/Intervention – Medical Policy Articlenot covered
  • A56865Billing and Coding: Psychiatric Inpatient Hospitalizationnot covered
  • A57052Billing and Coding: Psychiatric Inpatient Hospitalization
  • A57053Billing and Coding: Psychiatric Partial Hospitalization Programs

Alphabetic index entries that lead here

  • Disability, disabilities›intellectual›SYNGAP1-related
  • Disability, disabilities›intellectual›genetic related›SYNGAP1-related
  • Disability, disabilities›intellectual›with›pathogenic SYNGAP1(genetic) (variant)
  • Disability, disabilities›intellectual›genetic related›with›pathogenic SYNGAP1(variant)

Code history

Unchanged in every release from FY2024 to FY2027.

Other codes under F78.A

ICD-10-CMFY2027· effective October 1, 2026

Loaded directly from the CMS/NCHS ICD-10-CM public-domain release: see data sources and our editorial policy. If this page disagrees with the CMS tabular list, this page is wrong. Reference information for professional coders; not medical or billing advice.