U.S. ICD-10-CM · FY 2027

A81.09 ICD-10-CM Code: Other Creutzfeldt-Jakob disease

A clear reference for the official code description, hierarchy, and related coding information from the FY 2027 U.S. release.

Code definition

Official description

A81.09

Other Creutzfeldt-Jakob disease

ICD-10-CM diagnosis code · United States clinical modification

Classification

Where A81.09 sits

  1. 1

    Chapter 1

    Certain infectious and parasitic diseases (A00-B99)

  2. 2

    Section

    Viral and prion infections of the central nervous system (A80-A89)

  3. 3

    Category A81

    Atypical virus infections of central nervous system

  4. 4

    Subcategory A81.0

    Creutzfeldt-Jakob disease

  5. 5

    Code A81.09

    Other Creutzfeldt-Jakob disease

Documentation details

Notes for this code

Inclusion terms

  • CJD
  • Familial Creutzfeldt-Jakob disease
  • Iatrogenic Creutzfeldt-Jakob disease
  • Sporadic Creutzfeldt-Jakob disease
  • Subacute spongiform encephalopathy (with dementia)

Code first

No “code first” instruction is listed for A81.09.

Use additional code

No “use additional code” instruction is listed for A81.09.

Excludes1

Conditions that should not be reported together with this code.

No Excludes1 note is listed for A81.09.

Excludes2

Conditions not included here that may be reported separately when present.

No Excludes2 note is listed for A81.09.

Transparency

Source and release

Data release

U.S. ICD-10-CM · FY 2027

Effective date

Oct 1, 2026

This reference is generated from Vero’s ICD-10-CM description, hierarchy, and code-note dataset. The visible content and structured data share that source.

Review the CDC/NCHS ICD-10-CM source

Code-specific guidance

Frequently asked questions

What does ICD-10-CM code A81.09 mean?

A81.09 is the FY 2027 U.S. ICD-10-CM code for “Other Creutzfeldt-Jakob disease.”

Is A81.09 a billable or specific ICD-10-CM code?

Yes. In the FY 2027 reference data used on this page, A81.09 has no child codes and is presented as a billable/specific code. Always confirm the active code set and payer requirements before use.

Where is A81.09 located in ICD-10-CM?

A81.09 is listed in Chapter 1, Certain infectious and parasitic diseases (A00-B99), within Viral and prion infections of the central nervous system (A80-A89) (A80–A89), under category A81, Atypical virus infections of central nervous system and subcategory A81.0, Creutzfeldt-Jakob disease.

What coding notes are listed for A81.09?

Its listed inclusion terms are CJD; Familial Creutzfeldt-Jakob disease; Iatrogenic Creutzfeldt-Jakob disease; Sporadic Creutzfeldt-Jakob disease; Subacute spongiform encephalopathy (with dementia). No code-first instruction is listed. No Excludes1 note is listed. No Excludes2 note is listed.

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