ICD-10-CM Code F04
Amnestic disorder due to known physiological condition
Billable CodeBillable codes are sufficient justification for admission to an acute care hospital when used a principal diagnosis.
Mental Health CodeIndicates that the ICD code is referenced in DSM-5 (Diagnostic and Statistical Manual of Mental Disorders, Version 5)
F04 is a billable ICD code used to specify a diagnosis of amnestic disorder due to known physiological condition. A 'billable code' is detailed enough to be used to specify a medical diagnosis.
The ICD code F04 is used to code Amnesia
Amnesia (from Greek, meaning "forgetfulness"; from ἀ- (a-), meaning "without", and μνήσις (mnesis), meaning "memory"), also known as amnesic syndrome, is a deficit in memory caused by brain damage, disease, or psychological trauma. Amnesia can also be caused temporarily by the use of various sedatives and hypnotic drugs. Essentially, amnesia is loss of memory. The memory can be either wholly or partially lost due to the extent of damage that was caused. There are two main types of amnesia: retrograde amnesia and anterograde amnesia. Retrograde amnesia is the inability to retrieve information that was acquired before a particular date, usually the date of an accident or operation. In some cases the memory loss can extend back decades, while in others the person may lose only a few months of memory. Anterograde amnesia is the inability to transfer new information from the short-term store into the long-term store. People with this type of amnesia cannot remember things for long periods of time. These two types are not mutually exclusive. Both can occur within a patient at one time. Case studies, such as that of patient R.B., show that both types of amnesia can occur simultaneously. Case studies also show that amnesia is typically associated with damage to the medial temporal lobe. In addition, specific areas of the hippocampus (the CA1 region) are involved with memory. Research has also shown that when areas of the diencephalon are damaged, amnesia can occur. Recent studies have shown a correlation between deficiency of RbAp48 protein and memory loss. Scientists were able to find that mice with damaged memory have a lower level of RbAp48 protein compared to normal, healthy mice. In people suffering with amnesia, the ability to recall immediate information is still retained, and they may still be able to form new memories. However, a severe reduction in the ability to learn new material and retrieve old information can be observed. Patients can learn new procedural knowledge. In addition, priming (both perceptual and conceptual) can assist amnesiacs in the learning of fresh non-declarative knowledge. Amnesic patients also retain substantial intellectual, linguistic, and social skill despite profound impairments in the ability to recall specific information encountered in prior learning episodes.
|MeSH Codes:||D000647, D000647, D000647|
|ICD 9 Codes:||294.0, 780.9, 780.93|
Coding Notes for F04 Info for medical coders on how to properly use this ICD-10 code
Inclusion TermsInclusion 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.
- Korsakov's psychosis or syndrome, nonalcoholic
- The underlying physiological condition
Code Type-1 Excludes:
Type-1 ExcludesType-1 Excludes mean the conditions excluded are mutually exclusive and should never be coded together. Excludes 1 means "do not code here."
- Amnesia NOS - instead, use code R41.3
- Anterograde amnesia - instead, use code R41.1
- Dissociative amnesia - instead, use code F44.0
- Retrograde amnesia - instead, use code R41.2
Code Type-2 Excludes:
Type-2 ExcludesType-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."
- Alcohol-induced or unspecified Korsakov's syndrome (F10.26, F10.96) - instead, use code F10.26
- Korsakov's syndrome induced by other psychoactive substances (F13.26, F13.96, F19.16, F19.26, F19.96) - instead, use code F13.26
- DRG Group #884 - Organic disturbances and mental retardation.
Related Concepts SNOMET-CT
- Organic amnesia of language (disorder)
Coding Advice SNOMET-CT
- Consider additional code to identify specific condition or disease
- This is an infectious agent code for use in a secondary position
ICD-10-CM Alphabetical Index References for 'F04 - Amnestic disorder due to known physiological condition'
The ICD-10-CM Alphabetical Index links the below-listed medical terms to the ICD code F04. Click on any term below to browse the alphabetical index.
Equivalent ICD-9 Code 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 F04 and a single ICD9 code, 294.0 is an approximate match for comparison and conversion purposes.