A81.83Billable
Fatal familial insomnia
- Chapter
- 1. Certain infectious and parasitic diseases
- Category
- A81
- Effective date
- October 1, 2026
Related codes in category A81
A81Atypical virus infections of central nervous systemA81.0Creutzfeldt-Jakob diseaseA81.00Creutzfeldt-Jakob disease, unspecifiedYesA81.01Variant Creutzfeldt-Jakob diseaseYesA81.09Other Creutzfeldt-Jakob diseaseYesA81.1Subacute sclerosing panencephalitisYesA81.2Progressive multifocal leukoencephalopathyYesA81.8Other atypical virus infections of central nervous systemA81.81KuruYesA81.82Gerstmann-Straussler-Scheinker syndromeYesA81.89Other atypical virus infections of central nervous systemYesA81.9Atypical virus infection of central nervous system, unspYes
Frequently asked questions
What is ICD-10 code A81.83?
A81.83 is an ICD-10-CM diagnosis code for Fatal familial insomnia.
Is A81.83 a billable code?
Yes. A81.83 is billable and specific enough to be used on a claim.
What ICD-10-CM chapter is A81.83 in?
A81.83 falls under Chapter 1: Certain infectious and parasitic diseases.
When did A81.83 become effective?
A81.83 has been effective since October 1, 2026, per the CMS/CDC ICD-10-CM annual release.
What other codes are related to A81.83?
A81.83 belongs to category A81, which includes 12 other codes — see the related codes list on this page.
ICD-10-CM data maintained by CDC/CMS (public domain). Always verify codes with authoritative sources before making coding or billing decisions.