Valid for Submission
G45.4 is a billable diagnosis code used to specify a medical diagnosis of transient global amnesia. The code G45.4 is valid during the fiscal year 2021 from October 01, 2020 through September 30, 2021 for the submission of HIPAA-covered transactions.
The ICD-10-CM code G45.4 might also be used to specify conditions or terms like transient global amnesia.
Tabular List of Diseases and Injuries
The Tabular List of Diseases and Injuries is a list of ICD-10 codes, organized "head to toe" into chapters and sections with guidance for inclusions, exclusions, descriptions and more. The following references are applicable to the code G45.4:
Type 1 ExcludesType 1 Excludes
A type 1 excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
- amnesia NOS R41.3
Index to Diseases and Injuries
The Index to Diseases and Injuries is an alphabetical listing of medical terms, with each term mapped to one or more ICD-10 code(s). The following references for the code G45.4 are found in the index:
The following clinical terms are approximate synonyms or lay terms that might be used to identify the correct diagnosis code:
- Transient global amnesia
- AMNESIA TRANSIENT GLOBAL-. a syndrome characterized by a transient loss of the ability to form new memories. it primarily occurs in middle aged or elderly individuals and episodes may last from minutes to hours. during the period of amnesia immediate and recent memory abilities are impaired but the level of consciousness and ability to perform other intellectual tasks are preserved. the condition is related to bilateral dysfunction of the medial portions of each temporal lobe. complete recovery normally occurs and recurrences are unusual. from adams et al. principles of neurology 6th ed pp429 30
Convert G45.4 to ICD-9 Code
Information for Patients
Every day, you have different experiences and you learn new things. Your brain cannot store all of that information, so it has to decide what is worth remembering. Memory is the process of storing and then remembering this information. There are different types of memory. Short-term memory stores information for a few seconds or minutes. Long-term memory stores it for a longer period of time.
Memory doesn't always work perfectly. As you grow older, it may take longer to remember things.
It's normal to forget things once in awhile. We've all forgotten a name, where we put our keys, or if we locked the front door. If you are a senior who forget things more often than others your age, you may have mild cognitive impairment. Forgetting how to use your phone or find your way home may be signs of a more serious problem, such as
- Alzheimer's disease
- Other types of dementia
- Head injuries
- Blood clots or tumors in the brain
- Kidney, liver, or thyroid problems
- Reactions to certain medicines
If you're worried about your forgetfulness, see your health care provider.
NIH: National Institute on Aging
- Memory loss (Medical Encyclopedia)
- Mental status testing (Medical Encyclopedia)
- Remembering tips (Medical Encyclopedia)