ICD-10-CM Code F05
Delirium due to known physiological condition
Billable Code
Billable codes are sufficient justification for admission to an acute care hospital when used a principal diagnosis.F05 is a billable ICD code used to specify a diagnosis of delirium due to known physiological condition. A 'billable code' is detailed enough to be used to specify a medical diagnosis.
The ICD code F05 is used to code Dementia
Dementia, also known as senility, is a broad category of brain diseases that cause a long term and often gradual decrease in the ability to think and remember that is great enough to affect a person's daily functioning. Other common symptoms include emotional problems, problems with language, and a decrease in motivation. A person's consciousness is usually not affected. A dementia diagnosis requires a change from a person's usual mental functioning and a greater decline than one would expect due to aging. These diseases also have a significant effect on a person's caregivers.
| Specialty: | Neurology, Psychiatry |
| MeSH Codes: | D003704, D003704 |
| ICD 9 Codes: | 290, 294 |
Comparison of a normal aged brain (left) and the brain of a person with Alzheimer's (right). Differential characteristics are pointed out.
Coding Notes for F05 Info for medical coders on how to properly use this ICD-10 code
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Inclusion Terms:
Inclusion Terms
Inclusion Terms are a list of concepts for which a specific code is used. The list of Inclusion Terms is useful for determining the correct code in some cases, but the list is not necessarily exhaustive. - Acute or subacute brain syndrome
- Acute or subacute confusional state (nonalcoholic)
- Acute or subacute infective psychosis
- Acute or subacute organic reaction
- Acute or subacute psycho-organic syndrome
- Delirium of mixed etiology
- Delirium superimposed on dementia
- Sundowning
- codeFirst:
- The underlying physiological condition
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Code Type-1 Excludes:
Type-1 Excludes
Type-1 Excludes mean the conditions excluded are mutually exclusive and should never be coded together. Excludes 1 means "do not code here." - Delirium NOS - instead, use code R41.0
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Code Type-2 Excludes:
Type-2 Excludes
Type-2 Excludes means the excluded conditions are different, although they may appear similar. A patient may have both conditions, but one does not include the other. Excludes 2 means "not coded here." - Delirium tremens alcohol-induced or unspecified (F10.231, F10.921) - instead, use code F10.231
MS-DRG Mapping
- DRG Group #880 - Acute adjustment reaction and psychosocial dysfunction.
ICD-10-CM Alphabetical Index References for 'F05 - Delirium due to known physiological condition'
The ICD-10-CM Alphabetical Index links the below-listed medical terms to the ICD code F05. Click on any term below to browse the alphabetical index.
Equivalent ICD-9 Codes GENERAL EQUIVALENCE MAPPINGS (GEM)
This is the official approximate match mapping between ICD9 and ICD10, as provided by the General Equivalency mapping crosswalk. This means that while there is no exact mapping between this ICD10 code F05 and a single ICD9 code, 293.1 is an approximate match for comparison and conversion purposes.