ICD-10-CM · Chapter 1 · A00–B99
A81.1
Subacute sclerosing panencephalitis
Certain infectious and parasitic diseases
Quick facts
- Code
- A81.1
- Type
- Billable code
- ICD-10-CM chapter
- Chapter 1 — Certain infectious and parasitic diseases
- Category
- A81 — Atypical virus infections of central nervous system
- Specificity
- 4 characters
How coders use this code
ICD-10-CM A81.1 is a billable, fully specified code, so it can be reported directly on a claim to document a diagnosis of subacute sclerosing panencephalitis. Coders assign it when the chart documentation supports this level of detail, always matching to the most specific code available and verifying against the chapter-specific guidelines published annually by NCHS/CMS.
Related codes in A81
- A81Atypical virus infections of central nervous system
- A81.0Creutzfeldt-Jakob disease
- A81.00Creutzfeldt-Jakob disease, unspecified
- A81.01Variant Creutzfeldt-Jakob disease
- A81.09Other Creutzfeldt-Jakob disease
- A81.2Progressive multifocal leukoencephalopathy
- A81.8Other atypical virus infections of central nervous system
- A81.81Kuru
- A81.82Gerstmann-Straussler-Scheinker syndrome
- A81.83Fatal familial insomnia
- A81.89Other atypical virus infections of central nervous system
- A81.9Atypical virus infection of central nervous system, unspecified
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