MB21.0
Age-associated cognitive decline
Age-associated cognitive decline
Classification
ICD-11
Block
MB20-MB2YParent Code
MB21ICD-10 Mapping
2 equivalentsWHO Foundation
View on WHOICD-10 Equivalents(2)
ICD-10 Equivalents
View full mappingCorresponding ICD-10-CM codes from the WHO crosswalk mapping
Also Known As / Clinical Terms(12)
SNOMED CT ↗
- Age-related degeneration of brain45864009
- Degenerative brain disorder52522001
- Disorder of brain81308009
- Cerebellar degeneration95646004
- Cerebral atrophy278849000
- Cerebral degeneration presenting primarily with dementia279982005
- Cerebral degeneration418143002
- Chorea due to heredodegenerative disorder722966004
- Autonomic nervous system disorder co-occurrent and due to neurodegenerative disorder724813004
- Epilepsy co-occurrent and due to degenerative brain disorder724988000
Frequently Asked Questions
What is the ICD-11 code for age-associated cognitive decline?
The ICD-11 code for age-associated cognitive decline is MB21.0. The full clinical description is "Age-associated cognitive decline".
What does ICD-11 code MB21.0 mean?
ICD-11 code MB21.0 represents “Age-associated cognitive decline”. It is classified under Chapter 21: Symptoms, Signs or Clinical Findings, Not Elsewhere Classified.
What chapter is MB21.0 in?
MB21.0 is in Chapter 21: Symptoms, Signs or Clinical Findings, Not Elsewhere Classified (codes MA00-MH2Z).
What is the ICD-10 equivalent of ICD-11 code MB21.0?
MB21.0 maps to 2 ICD-10 codes: G31.1 (Senile degeneration of brain, not elsewhere classified), R41.8 (Oth symptoms and signs w cognitive functions and awareness). ICD-10 and ICD-11 do not always have one-to-one mappings — check the mapping type (equivalent, approximate, narrower, or broader) for each result.
What is the difference between ICD-10 and ICD-11?
ICD-11 is the latest revision of the WHO's International Classification of Diseases, succeeding ICD-10. Key differences include: a fully digital-first design, new chapters for sleep-wake disorders, sexual health, and traditional medicine, improved coding for rare diseases, and better integration with electronic health records through extension codes.
What SNOMED CT codes does MB21.0 map to?
MB21.0 maps to 10 SNOMED CT concepts: 45864009, 724813004, 95646004, 278849000, 418143002, and 5 more. SNOMED CT is a clinical terminology used in electronic health records.
What UMLS concepts map to ICD-11 code MB21.0?
MB21.0 is linked to 2 UMLS Concept Unique Identifiers: C0494465, C5886796. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.
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Includes SNOMED Clinical Terms® (SNOMED CT®) used by permission of SNOMED International. Includes content from the UMLS Metathesaurus, courtesy of the U.S. National Library of Medicine.