2020 ICD-10-CM Diagnosis Code G30.1

Alzheimer's disease with late onset

    2016 2017 2018 2019 2020 Billable/Specific Code Adult Dx (15-124 years)
  • G30.1 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
  • The 2020 edition of ICD-10-CM G30.1 became effective on October 1, 2019.
  • This is the American ICD-10-CM version of G30.1 - other international versions of ICD-10 G30.1 may differ.
ICD-10-CM Coding Rules
  • G30.1 is applicable to adult patients aged 15 - 124 years inclusive.
The following code(s) above G30.1 contain annotation back-references
Annotation Back-References
In this context, annotation back-references refer to codes that contain:
  • Applicable To annotations, or
  • Code Also annotations, or
  • Code First annotations, or
  • Excludes1 annotations, or
  • Excludes2 annotations, or
  • Includes annotations, or
  • Note annotations, or
  • Use Additional annotations
that may be applicable to G30.1:
  • G00-G99
    2020 ICD-10-CM Range G00-G99

    Diseases of the nervous system

    Type 2 Excludes
    • certain conditions originating in the perinatal period (P04-P96)
    • certain infectious and parasitic diseases (A00-B99)
    • complications of pregnancy, childbirth and the puerperium (O00-O9A)
    • congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)
    • endocrine, nutritional and metabolic diseases (E00-E88)
    • injury, poisoning and certain other consequences of external causes (S00-T88)
    • neoplasms (C00-D49)
    • symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
    Diseases of the nervous system
  • G30
    ICD-10-CM Diagnosis Code G30

    Alzheimer's disease

      2016 2017 2018 2019 2020 Non-Billable/Non-Specific Code
    Includes
    • Alzheimer's dementia senile and presenile forms
    Type 1 Excludes
    • senile degeneration of brain NEC (G31.1)
    • senile dementia NOS (F03)
    • senility NOS (R41.81)
    Use Additional
    • code to identify:
    • delirium, if applicable (F05)
    • dementia with behavioral disturbance (F02.81)
    • dementia without behavioral disturbance (F02.80)
    Alzheimer's disease
Approximate Synonyms
  • Alzheimers dementia with depressive mood
  • Alzheimers dementia, late onset, uncomplicated
  • Alzheimers dementia, late onset, w behavioral disturbance
  • Alzheimers dementia, late onset, w delirium
  • Alzheimers dementia, late onset, w depressed mood
  • Alzheimers dementia, late onset, with delusions
  • Alzheimers disease, late onset
  • Behavioral disturbance co-occurrent and due to late onset alzheimers dementia
  • Dementia alzheimers type, late onset with delirium
  • Dementia of the alzheimers type, late onset
  • Primary degenerative dementia of the alzheimer type, senile onset
  • Primary degenerative dementia of the alzheimer type, senile onset, uncomplicated
  • Primary degenerative dementia of the alzheimer type, senile onset, with delirium
  • Primary degenerative dementia of the alzheimer type, senile onset, with delusions
  • Primary degenerative dementia of the alzheimer type, senile onset, with depression
ICD-10-CM G30.1 is grouped within Diagnostic Related Group(s) (MS-DRG v37.0):
  • 056 Degenerative nervous system disorders with mcc
  • 057 Degenerative nervous system disorders without mcc

Convert G30.1 to ICD-9-CM

Code History
  • 2016 (effective 10/1/2015): New code (first year of non-draft ICD-10-CM)
  • 2017 (effective 10/1/2016): No change
  • 2018 (effective 10/1/2017): No change
  • 2019 (effective 10/1/2018): No change
  • 2020 (effective 10/1/2019): No change

Diagnosis Index entries containing back-references to G30.1:

ICD-10-CM Codes Adjacent To G30.1
G25.79 Other drug induced movement disorders
G25.8 Other specified extrapyramidal and movement disorders
G25.81 Restless legs syndrome
G25.82 Stiff-man syndrome
G25.83 Benign shuddering attacks
G25.89 Other specified extrapyramidal and movement disorders
G25.9 Extrapyramidal and movement disorder, unspecified
G26 Extrapyramidal and movement disorders in diseases classified elsewhere
G30 Alzheimer's disease
G30.0 Alzheimer's disease with early onset
G30.1 Alzheimer's disease with late onset
G30.8 Other Alzheimer's disease
G30.9 Alzheimer's disease, unspecified
G31 Other degenerative diseases of nervous system, not elsewhere classified
G31.0 Frontotemporal dementia
G31.01 Pick's disease
G31.09 Other frontotemporal dementia
G31.1 Senile degeneration of brain, not elsewhere classified
G31.2 Degeneration of nervous system due to alcohol
G31.8 Other specified degenerative diseases of nervous system
G31.81 Alpers disease

Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.