Diagnosis Code G30.9
Information for Medical Professionals
The ICD-10 and ICD-9 GEMs are used to facilitate linking between the diagnosis codes in ICD-9-CM and the new ICD-10-CM code set. The GEMs are the raw material from which providers, health information vendors and payers can derive specific applied mappings to meet their needs.
- 331.0 - Alzheimer's disease (approximate) Approximate Flag
The approximate flag is on, indicating that the relationship between the code in the source system and the code in the target system is an approximate equivalent.
- Altered behavior in Alzheimer's disease
- Alzheimer's disease
- Delusions in Alzheimer's disease
- Dementia due to Alzheimer's disease
- Dementia of the Alzheimer type with behavioral disturbance
- Depressed mood
- Depressed mood in Alzheimer's disease
- Focal Alzheimer's disease
- Frontotemporal degeneration
- Progressive aphasia
- Progressive aphasia in Alzheimer's disease
Information for Patients
Also called: AD
Alzheimer's disease (AD) is the most common form of dementia among older people. Dementia is a brain disorder that seriously affects a person's ability to carry out daily activities.
AD begins slowly. It first involves the parts of the brain that control thought, memory and language. People with AD may have trouble remembering things that happened recently or names of people they know. A related problem, mild cognitive impairment (MCI), causes more memory problems than normal for people of the same age. Many, but not all, people with MCI will develop AD.
In AD, over time, symptoms get worse. People may not recognize family members. They may have trouble speaking, reading or writing. They may forget how to brush their teeth or comb their hair. Later on, they may become anxious or aggressive, or wander away from home. Eventually, they need total care. This can cause great stress for family members who must care for them.
AD usually begins after age 60. The risk goes up as you get older. Your risk is also higher if a family member has had the disease.
No treatment can stop the disease. However, some drugs may help keep symptoms from getting worse for a limited time.
NIH: National Institute on Aging
- Alzheimer disease
- Alzheimer's Caregiving Tips: Bathing - NIH (National Institute on Aging)
- Changes in Communication Skills - NIH (National Institute on Aging)
- Changes in Intimacy and Sexuality - NIH (National Institute on Aging)
- Coping with Agitation and Aggression - NIH (National Institute on Aging)
- Daily Activities - NIH (National Institute on Aging)
- End-of-Life Care - NIH (National Institute on Aging)
- Exercise and Physical Activity - NIH (National Institute on Aging)
- Grooming and Dressing - NIH (National Institute on Aging)
- Hallucinations, Delusions, and Paranoia - NIH (National Institute on Aging)
- Healthy Eating - NIH (National Institute on Aging)
- Helping Family and Friends Understand Alzheimer's Disease - NIH (National Institute on Aging)
- Helping Kids Understand Alzheimer's Disease - NIH (National Institute on Aging)
- Incontinence - NIH (National Institute on Aging)
- Managing Medicines - NIH (National Institute on Aging)
- Managing Personality and Behavior Changes - NIH (National Institute on Aging)
- Mental status testing
- Now What? Next Steps After a Diagnosis of Alzheimer's Disease - NIH (National Institute on Aging)
- Rummaging and Hiding Things - NIH (National Institute on Aging)
Alzheimer disease Alzheimer disease is a degenerative disease of the brain that causes dementia, which is a gradual loss of memory, judgment, and ability to function. This disorder usually appears in people older than age 65, but less common forms of the disease appear earlier in adulthood.Memory loss is the most common sign of Alzheimer disease. Forgetfulness may be subtle at first, but the loss of memory worsens over time until it interferes with most aspects of daily living. Even in familiar settings, a person with Alzheimer disease may get lost or become confused. Routine tasks such as preparing meals, doing laundry, and performing other household chores can be challenging. Additionally, it may become difficult to recognize people and name objects. Affected people increasingly require help with dressing, eating, and personal care.As the disorder progresses, some people with Alzheimer disease experience personality and behavioral changes and have trouble interacting in a socially appropriate manner. Other common symptoms include agitation, restlessness, withdrawal, and loss of language skills. People with this disease usually require total care during the advanced stages of the disease. Affected individuals usually survive 8 to 10 years after the appearance of symptoms, but the course of the disease can range from 1 to 25 years. Death usually results from pneumonia, malnutrition, or general body wasting (inanition).Alzheimer disease can be classified as early-onset or late-onset. The signs and symptoms of the early-onset form appear before age 65, while the late-onset form appears after age 65. The early-onset form is much less common than the late-onset form, accounting for less than 5 percent of all cases of Alzheimer disease.