Codes / ICD10CM / G31.09

G31.09 Other frontotemporal dementia

ICD10CM code

ICD10CM

Chat with GenHealth to automate any coding or chart task.

Name of the Condition

  • Other frontotemporal dementia

Summary

Other frontotemporal dementia refers to a group of neurodegenerative disorders characterized by progressive degeneration of the frontal and temporal lobes of the brain. These conditions lead to changes in behavior, personality, and language, with symptoms varying based on the specific subtype. The condition typically presents in midlife and progresses over time, affecting daily functioning.

Causes

The exact cause of other frontotemporal dementia is often unknown, but it is frequently linked to abnormal accumulation of proteins (such as tau or TDP-43) in brain cells. Genetic factors play a role in some cases, with mutations in specific genes associated with familial forms. Sporadic cases may arise from a combination of genetic and environmental influences.

Risk Factors

  • Age: Most commonly diagnosed between 45 and 65 years.
  • Family history: A first-degree relative with frontotemporal dementia increases risk.
  • Genetic mutations: Inherited mutations in certain genes are strong risk factors.
  • Sex: Slightly more common in males for some subtypes.

Symptoms

  • Behavioral changes: Disinhibition, apathy, or socially inappropriate actions.
  • Language difficulties: Impaired speech production or comprehension (aphasia).
  • Executive dysfunction: Poor judgment, planning, or problem-solving.
  • Personality changes: Loss of empathy or emotional blunting.
  • Motor symptoms: Muscle weakness, rigidity, or tremors (in some subtypes).

Diagnosis

Diagnosis relies on clinical evaluation, including neurological exams, imaging (MRI/CT) to assess brain atrophy, and sometimes neuropsychological testing. Definitive confirmation may require postmortem histopathological analysis.

Treatment Options

Treatment focuses on managing symptoms and supporting daily functioning. Options may include behavioral interventions, speech therapy, and medications to address mood or behavioral symptoms. No cure exists, but supportive care can improve quality of life.

Prognosis and Follow-Up

The prognosis varies by subtype but generally involves a progressive decline over several years. Regular follow-up with healthcare providers is important to monitor symptoms, adjust treatments, and provide support for patients and caregivers.

Complications

Complications may include severe cognitive decline, loss of independence, difficulty with communication, and increased risk of infections or falls. Behavioral changes can also strain relationships and caregiving resources.

Lifestyle & Prevention

While no specific prevention exists, maintaining overall brain health through regular exercise, a balanced diet, and cognitive stimulation may support general well-being. Caregivers should prioritize self-care and seek support to manage stress.

When to Seek Professional Help

Seek medical attention if there are noticeable changes in behavior, personality, or language, especially if these affect daily functioning. Early evaluation can help rule out other conditions and guide appropriate management.

Tips for Medical Coders

Document the specific subtype or clinical details supporting the diagnosis of other frontotemporal dementia. Ensure documentation aligns with the clinical presentation to justify the use of code G31.09. Include relevant history, symptoms, and diagnostic findings to support accurate coding.

Medical Policies and Guidelines

Related policies from health plans

Book a walkthrough

G31.09 policy automation walkthrough

Walk through the policies, prior authorization requirements, and workflow automation opportunities connected to this code.