Alzheimer's Disease (ICD10) V1.3

Metadata

Coding system
ICD-10
Coding system release
2019-covid-expanded
Organisation
University of Bristol
Codelist ID
bristol/alzheimers-disease-icd10-v13
Version ID
290893d9
Number of codes included
10

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Methodology

To identify dementia subtypes, an 'any dementia' code list was created by José Ignacio Cuitún Coronado (Senior Research Associate in Medical Statistics and Applied Health Data Science, University of Bristol). Elizabeth Coulthard (Professor of Cognitive Neurology, University of Bristol) reviewed the codelist, removed any irrelevant codes and determined which subtype each code belonged to:

The two-step process for identifying the 'any dementia' code list is summarised below.

Step 1. We searched for the following key terms:

  • Alzheimer
  • Dementia
  • Lewy bod
  • Lewy bodies
  • Dementia with Lewy bodies
  • DLB
  • Frontotemporal dementia
  • FTD
  • Creutzfeldt
  • Creutzfeldt Jakob
  • Creutzfeldt-Jakob disease
  • Variation of Creutzfeldt-Jakob disease
  • CJD
  • associated neurocognitive disorder
  • HIV-associated dementia
  • Frontal variant Alzheimer’s disease
  • fvAD
  • Posterior cortical atrophy
  • PCA
  • Corticobasal syndrome
  • CBS
  • Huntington's disease
  • Huntington's
  • Huntington
  • Normal pressure hydrocephalus
  • NPH
  • Progressive supranuclear palsy
  • PSP

Step 2. We excluded irrelevant codes (e.g., codes indicating a prevalent diagnosis or where the diagnosis was unclear):

(A) Codes that identify a prevalent diagnosis:

  • History of

(B) Codes that do not relate to the person:

  • Family history
  • Society
  • Committee

(C) Codes where the diagnosis is unclear:

  • Assessment
  • At risk
  • Attendance
  • Battery
  • Tool
  • Referral
  • Invite / invitation
  • Letter
  • Measure / measurement
  • Test
  • Scale

Codelists are developed by a broad community of users for individual study purposes, which may or may not meet the needs of other studies. They should not be thought of as universal definitions of a particular condition.

We don't offer any guarantees about what they do or don't identify. Users should carefully check that any codelist meets their needs, and seek clinical input where appropriate.

code term
F00 Dementia in Alzheimer disease G30.-
F000 Dementia in Alzheimer disease with early onset G30.0
F001 Dementia in Alzheimer disease with late onset G30.1
F002 Dementia in Alzheimer disease, atypical or mixed type G30.8
F009 Dementia in Alzheimer disease, unspecified G30.9
G30 Alzheimer disease
G300 Alzheimer disease with early onset
G301 Alzheimer disease with late onset
G308 Other Alzheimer disease
G309 Alzheimer disease, unspecified